Hi Rob. I bought a lathe tool set from Banggood after watching your previous videos. I'm pleasantly surprised by the quality, it's very good value - thanks for putting me on to them, cheers.
I buy a lot on Ali express, very satisfied. But be honest for hobbyists, the quality is very good. Once you have a business you can always go to the local dealer, because you will settle that in the account. The Chinese are a real blessing for hobbyists.
Rob I have several different size round boring bars, and to life simple I got some round steel stock, drilled for each boring bar, milled a flat and drilled and tapped for appropriate grub screws. Now they all fit the same round boring bar holder and all are centered and ready to use. John
Thanks Rob, ordered this set today after seeing your review. Always handy having additional boring bars, and at the price, I couldn’t resist. Now the wait........ Thanks for all your videos by the way. Great info and very relevant for me as I’m running the same lathe as you. Cheers
Hi Sig, Those boring bars are GREAT ! I use them often and the inserts are holding up very well. Three very useful sizes. One of the best things I've ever got from BG. How do you like the CQ9325/HBM450. Seen my mods page for it? users.tpg.com.au/agnet/cq9325rev3.html Cheers Rob
Good Morning and greetings from Dearborn. Michigan. Thanks for all you do Rob. I enjoy your approach with value always at the forefront. Growing up with nothing made me always keep an eye out for ways to save a buck.
Hi Ian, They are great. You couldn't do better unless you went full carbide at 100 times the price. Perfect for the average hobby/model maker. Cheers Rob
Thanks for the tip Rob' had to make up a 16mm boring bar for some hss for a internal threading job I did restoring my machine vice - it took a couple of hours - Ive just ordered the set delivered £15 ! That will save me some hand filing holes square ! All the best Mat
Great review, kinda want to buy a set, but tied me hands down, mainly because most of the accurate holes I want are in the range of my reamers & I rarely use a boring bar, which probably means some job needing one will now turn up!
Just a tip: Only have the boring bar sticking out of your tool holder a bit more than your desired depth of cut. Boring bars experience lots of tool push due to the length so only stick out what you need to reduce tool push and increase rigidity. Lastly, If you are removing 20 thou, for example you may divide it up in half or fourths that way your final cut is the same as your first. Good Luck!
The holders I received are negative rake holders, and the inserts are positive rake with no chip breaker and for cutting on one side only. Not happy with the cut. Going to modify holder to have top of insert parallel to the bed lathe and see how that works. Of course if my holder would accept rotation no mod would be needed. Thanks for the review, appreciate it. They are a bargain.
Hi JIm, The holders I reviewed are negative rake. They do that to allow minimal metal below the carbide insert so it can align with centre on small jobs. The inserts I got were slightly positive, which is what that insert number is. If the cut is bad then it could be something else as mine and others using these had no problem. You must have the insert point at or slightly above centre, definitely not below, or you will get harmonics and possibly chatter. Cheers Rob
Thanks Rob. I will experiment with the largest one for my amusement. Yes, I always bore above center. Will also try some other materials and speeds-feeds. Cheers.
By using cutting fluid on unknown mild steel I got some very nice finishes boring 1" holes at 500 rpm and .008 " DOC. Feed was about .0035 "/rev. Used largest bar, un modified. Insert looked ok after a dozen passes. Cutting fluid made the difference, at least on this material. Did not try higher RPM , which would favor carbide.
I have some solid carbide boring bars that take much smaller inserts than that: CC*T03's. Just as an apropos to how small you can go with carbide boring bars. (Beeing made from solid carbide does not actually have anything to do with taking a carbide insert in this case, it is just to get them stiffer since they are really small) The bar is a 4mm diameter: C04G-SCLCR03. It does add 0 to the price though
Excellent review--looks like a great value. They show up as US$12.33 when I follow your link. Might be worth switching from what I've got (a brazed-on set) just to save space in the toolbox.
Hi Rick, This set really is excellent. They sold out pretty quickly. My contact assures me the restock will only take a few days. Got to be the best value tooling item I've seen for a long time. Cheers Rob
that's excellent! so one carbide insert can be rotated one time once it gets dull right? how many DIA 23mm x 36mm deep holes in aluminum do you think you can get with both sides of 1 carbide insert? I'm not asking for any precise estimate, just throw me into some ballpark, do you think I can bore 100 holes (DIA 23mm x 36mm deep) with 1 carbide insert? or maybe only 10? I'm waiting for my 1st lathe ever, and I have never worked on lathes. so I am totally blank, and hence I'm asking dumb / trivial questions.
Yes. You can buy holders that use the other two corners as well, but it's a bit of a compromise as it won't do corners because of the wide angle, so only really good for facing and full length cuts. The boring bars are super great, really excellent and the range is perfect, doing a wide range of diameters down to very small. I like and use these a lot. Cheers Rob
@@Xynudu I have just ordered the 7mm smallest boring bar, so that I can bore smaller holes, as well as big ones. would you buy the bigger one as well because I drill 23mm x 36 deep holes in aluminum all the time? or just using that 7mm will do the same job?
You should use the biggest boring bar that will fit the hole to reduce flex and harmonics. This is particularly true the longer the boring bar overhang is. It is a good idea to have a range of sizes. Cheers Rob
Hi Rob. I use cnmg tips which are similar shape to the ones you have there although a little bigger. To use up the opposite cutting edges I bought a MCMNN1616H12 tool holder. You could probably get a holder small enough to fit your tips and so double your use of the tips. Ideal for facing & chamfers. Nice review btw. regards from the UK
Hi Gary, I wondered about that. Thanks for the tip (no pun intended). I will see what's available to take the insert. Should be ideal for what you suggested. They are sharp little inserts for carbide, and seem to work very well on light cuts. Cheers Rob
Hi Rob, yes I had seen your mods page, great stuff. I remember seeing another mod with allowed for a manual crack handle which mounted to the spindle in the gear box casing which looked great and be real handy for threading. I’m real happy with the lathe, had it many years now. Only mods I’ve done is the extended handles similar to yours. Considered a vertical mill mod but never got around to it. My biggest gripe is with the gear set up. So much mucking around in changing gears in order to do various threads. I do need to get a live centre as I’ve just used the supplied the dead centre to date. Also wouldn’t mind a quick change tool post, purely for convenience. Any recommendations on a suitable live centre and QC tool post Rob?
Hi Sig, The belt adjuster mod is probably the one the lathe needs the most. Makes things a LOT easier. I could afford a replacement lathe, but I like this one so much it's never going to happen. I can't recommend a QCTP as I don't use them. Mainly because they reduce rigidity by way of the increased overhang and extra joints etc. As far as live centres go, I've bought four Chinese ones in various sizes over the years (all below $40) and never had an issue. A long centre section and small body diameter are a good thing to look for, to reduce tool/post restriction when working in close to an end. Fat ones can be a bit of a bug bear. Quality has always been good on these. Cheers Rob
That's okay I'll just buy this one. Ya couldn't make it for that price www.banggood.com/SNR0008k11-8x125mm-Threading-Boring-Bar-Turning-Tool-with-T8-Wrench-p-1036004.html?rmmds=search
I have a similar Banggood boring bar set laying around to review. Also a 7,10,12mm set. Mine came with Mitsubishi inserts. I must say doing a review feels a bit redundant now :) ps. carefully check the coating on the insert pocket. The 10mm I have has some bubbles on the surface. Not something you want underneath a insert.
Mine don't have that or any issues. I half expected Mitsubishi inserts to arrive with this, as comments indicate some people get them. Whether they actually are Mitsubishi is the burning question ;) Cheers Rob
I've send an email to Mitsubishi but they never replied. I suspect they have some of their inserts made in China and selling them with huge profit margins :) They look pretty legit: goo.gl/Yq5S7i goo.gl/oeeYnm Here you can see those bubbles I was talking about. goo.gl/AyVuLb
I expect they probably are legit. Banggood don't sell fakes from my observation. The box is totally different to mine. Hmm. I see what you mean about the bubbles. My 12 mm bar is OK in that respect, but the overall finish is not as fine as the two smaller sizes from the other manufacturer. Rob
Yeah those two small once looked great with the scales printed on. None of the boring bars I got have scales. Looks like Banggood is buying from different manufactures.
Hi Bluey, They take the CCMT060204 insert. Either of the ones below will fit: www.banggood.com/10pcs-CCMT060204-HM-YBC251-Carbide-Insert-Titanium-Coated-Carbide-Cutter-p-1055821.html?rmmds=search&cur_warehouse=AU www.banggood.com/Drillpro-10pcs-CCMT060204-HM-YBC251-Carbide-Insert-Titanium-Coated-Carbide-Cutter-p-1139720.html?rmmds=detail-left-hotproducts__1&cur_warehouse=USA It should take you a very long time to wear out the ones supplied, given the relatively low loadings generally put on boring bars. Cheers Rob
Thanks for the tip Rob. After watching your video, I went to the Bang Good site and ordered a set for myself. $13 US and free shipping. How can they do that so cheap I'm wondering? Couldn't pass it up.
hi rob,you should review a quick change tool post holder next. Hear what I'm saying. you must be one of the last guys using a 4 way tool post and shiming.my god the shiming,having flash backs talking about it.geoff
Gawd. That didn't take long. When I put up the video they had sold 450 sets and now it's 504 and sold out in 12 hours. Still worth waiting for the restock. It's a great set/value. Cheers Rob
The 7 and 10 mm bars are made by LI FENG JING MI : www.lftool.com/english/index.asp The 12 mm bar is made by WEILONG CNC : www.wl-tools.com/english/about.asp
Hi Rob. I bought a lathe tool set from Banggood after watching your previous videos.
I'm pleasantly surprised by the quality, it's very good value - thanks for putting me on to them, cheers.
I buy a lot on Ali express, very satisfied. But be honest for hobbyists, the quality is very good. Once you have a business you can always go to the local dealer, because you will settle that in the account. The Chinese are a real blessing for hobbyists.
Tx for the tip, i just ordered the same set as in your vid. Keep up the good content and greetings from the Netherlands
Rob
I have several different size round boring bars, and to life simple I got some round steel stock, drilled for each boring bar, milled a flat and drilled and tapped for appropriate grub screws. Now they all fit the same round boring bar holder and all are centered and ready to use.
John
Thanks Rob, ordered this set today after seeing your review. Always handy having additional boring bars, and at the price, I couldn’t resist. Now the wait........
Thanks for all your videos by the way.
Great info and very relevant for me as I’m running the same lathe as you.
Cheers
Hi Sig,
Those boring bars are GREAT ! I use them often and the inserts are holding up very well. Three very useful sizes. One of the best things I've ever got from BG.
How do you like the CQ9325/HBM450. Seen my mods page for it? users.tpg.com.au/agnet/cq9325rev3.html
Cheers Rob
Good Morning and greetings from Dearborn. Michigan. Thanks for all you do Rob. I enjoy your approach with value always at the forefront. Growing up with nothing made me always keep an eye out for ways to save a buck.
I know the feeling.
I did order these up.
just used your link and made a 100 dollar purchase from bang good. thanks for the review and sharing the link.
Glad you found it useful. That boring bar set is excellent and I use it as the go to unit.
Cheers Rob
Mine arrived 16th Jan 2018.. They cost AU$18.They look ok, I will test them in the next week or so.Thanks for the videos..
Those small boring bars would be excellent for model making Rob-- nice and rigid without too much spring..
Hi Ian,
They are great. You couldn't do better unless you went full carbide at 100 times the price.
Perfect for the average hobby/model maker.
Cheers Rob
Note: The fine feed rate for this lathe is 0.06 mm/rev NOT 0.5 as stated - my bad.
Rob
Thanks for the tip Rob' had to make up a 16mm boring bar for some hss for a internal threading job I did restoring my machine vice - it took a couple of hours - Ive just ordered the set delivered £15 ! That will save me some hand filing holes square ! All the best Mat
thanks for the link - the websites not easy to navigate - I shall spend some time looking through it.
Agree. You have to search for each item by name to get any meaningful listings. It could be organised a lot better.
Cheers Rob
Hi Rob, Thanks for the review always good to see if whats online is any good.More tests please!
Great review, kinda want to buy a set, but tied me hands down, mainly because most of the accurate holes I want are in the range of my reamers & I rarely use a boring bar, which probably means some job needing one will now turn up!
A reamer will not correct any lack of concentricity. A boring bar will.
So the sequence is: First boring bar, then reamer.
Just a tip: Only have the boring bar sticking out of your tool holder a bit more than your desired depth of cut. Boring bars experience lots of tool push due to the length so only stick out what you need to reduce tool push and increase rigidity. Lastly, If you are removing 20 thou, for example you may divide it up in half or fourths that way your final cut is the same as your first. Good Luck!
The holders I received are negative rake holders, and the inserts are positive rake with no chip breaker and for cutting
on one side only. Not happy with the cut. Going to modify holder to have top of insert parallel to the bed lathe
and see how that works. Of course if my holder would accept rotation no mod would be needed. Thanks for the review, appreciate it. They are a bargain.
Hi JIm,
The holders I reviewed are negative rake. They do that to allow minimal metal below the carbide insert so it can align with centre on small jobs. The inserts I got were slightly positive, which is what that insert number is.
If the cut is bad then it could be something else as mine and others using these had no problem.
You must have the insert point at or slightly above centre, definitely not below, or you will get harmonics and possibly chatter.
Cheers Rob
Thanks Rob. I will experiment with the largest one for my amusement. Yes, I always bore above center.
Will also try some other materials and speeds-feeds. Cheers.
By using cutting fluid on unknown mild steel I got some very nice finishes boring 1" holes at 500 rpm and .008 " DOC. Feed was about .0035 "/rev. Used largest bar, un modified. Insert looked ok after a dozen passes. Cutting fluid made the difference, at least on this material. Did not try higher RPM , which would favor carbide.
I have some solid carbide boring bars that take much smaller inserts than that: CC*T03's. Just as an apropos to how small you can go with carbide boring bars. (Beeing made from solid carbide does not actually have anything to do with taking a carbide insert in this case, it is just to get them stiffer since they are really small)
The bar is a 4mm diameter: C04G-SCLCR03. It does add 0 to the price though
Lots of dollars :)
Excellent review--looks like a great value. They show up as US$12.33 when I follow your link. Might be worth switching from what I've got (a brazed-on set) just to save space in the toolbox.
Hi Rick,
This set really is excellent. They sold out pretty quickly. My contact assures me the restock will only take a few days.
Got to be the best value tooling item I've seen for a long time.
Cheers Rob
that's excellent!
so one carbide insert can be rotated one time once it gets dull right?
how many DIA 23mm x 36mm deep holes in aluminum do you think you can get with both sides of 1 carbide insert?
I'm not asking for any precise estimate, just throw me into some ballpark, do you think I can bore 100 holes (DIA 23mm x 36mm deep) with 1 carbide insert? or maybe only 10?
I'm waiting for my 1st lathe ever, and I have never worked on lathes. so I am totally blank, and hence I'm asking dumb / trivial questions.
Yes. You can buy holders that use the other two corners as well, but it's a bit of a compromise as it won't do corners because of the wide angle, so only really good for facing and full length cuts. The boring bars are super great, really excellent and the range is perfect, doing a wide range of diameters down to very small. I like and use these a lot. Cheers Rob
@@Xynudu I have just ordered the 7mm smallest boring bar, so that I can bore smaller holes, as well as big ones.
would you buy the bigger one as well because I drill 23mm x 36 deep holes in aluminum all the time? or just using that 7mm will do the same job?
You should use the biggest boring bar that will fit the hole to reduce flex and harmonics. This is particularly true the longer the boring bar overhang is. It is a good idea to have a range of sizes. Cheers Rob
Hi Rob. I use cnmg tips which are similar shape to the ones you have there although a little bigger. To use up the opposite cutting edges I bought a MCMNN1616H12 tool holder. You could probably get a holder small enough to fit your tips and so double your use of the tips. Ideal for facing & chamfers. Nice review btw. regards from the UK
Hi Gary,
I wondered about that. Thanks for the tip (no pun intended). I will see what's available to take the insert. Should be ideal for what you suggested. They are sharp little inserts for carbide, and seem to work very well on light cuts.
Cheers Rob
Hi Rob, yes I had seen your mods page, great stuff. I remember seeing another mod with allowed for a manual crack handle which mounted to the spindle in the gear box casing which looked great and be real handy for threading. I’m real happy with the lathe, had it many years now. Only mods I’ve done is the extended handles similar to yours. Considered a vertical mill mod but never got around to it. My biggest gripe is with the gear set up. So much mucking around in changing gears in order to do various threads. I do need to get a live centre as I’ve just used the supplied the dead centre to date. Also wouldn’t mind a quick change tool post, purely for convenience. Any recommendations on a suitable live centre and QC tool post Rob?
Hi Sig,
The belt adjuster mod is probably the one the lathe needs the most. Makes things a LOT easier. I could afford a replacement lathe, but I like this one so much it's never going to happen.
I can't recommend a QCTP as I don't use them. Mainly because they reduce rigidity by way of the increased overhang and extra joints etc.
As far as live centres go, I've bought four Chinese ones in various sizes over the years (all below $40) and never had an issue.
A long centre section and small body diameter are a good thing to look for, to reduce tool/post restriction when working in close to an end. Fat ones can be a bit of a bug bear. Quality has always been good on these.
Cheers Rob
Thanks again Rob. Can you put thread cutting inserts in those?
Hi Walter,
Not that I am aware of. I had a look and I don't see any threading inserts in that style insert.
Cheers Rob
That's okay I'll just buy this one. Ya couldn't make it for that price
www.banggood.com/SNR0008k11-8x125mm-Threading-Boring-Bar-Turning-Tool-with-T8-Wrench-p-1036004.html?rmmds=search
That's amazing. He He. It's Christmas come early.
Cheers Rob
If we want a boring bar, we can just go to any pub in Adelaide on a Monday night :)
I think you could add a few more days to that.
G'day Rob good review I have one and it's been very good, thanks mate see you soon regards John.
I have a similar Banggood boring bar set laying around to review.
Also a 7,10,12mm set. Mine came with Mitsubishi inserts.
I must say doing a review feels a bit redundant now :)
ps. carefully check the coating on the insert pocket. The 10mm I have has some bubbles on the surface. Not something you want underneath a insert.
Mine don't have that or any issues. I half expected Mitsubishi inserts to arrive with this, as comments indicate some people get them. Whether they actually are Mitsubishi is the burning question ;)
Cheers Rob
I've send an email to Mitsubishi but they never replied.
I suspect they have some of their inserts made in China and selling them with huge profit margins :)
They look pretty legit: goo.gl/Yq5S7i goo.gl/oeeYnm
Here you can see those bubbles I was talking about. goo.gl/AyVuLb
I expect they probably are legit. Banggood don't sell fakes from my observation. The box is totally different to mine.
Hmm. I see what you mean about the bubbles. My 12 mm bar is OK in that respect, but the overall finish is not as fine as the two smaller sizes from the other manufacturer.
Rob
Yeah those two small once looked great with the scales printed on.
None of the boring bars I got have scales.
Looks like Banggood is buying from different manufactures.
These boring bars look like Rolls Royces compared to what I've been using for years :)
I have one of those that I love , It does a great job !
Rob, I haven't broken any inserts yet, but just in case do you have replacement details?I couldn't find any..Cheers.....
Hi Bluey,
They take the CCMT060204 insert. Either of the ones below will fit:
www.banggood.com/10pcs-CCMT060204-HM-YBC251-Carbide-Insert-Titanium-Coated-Carbide-Cutter-p-1055821.html?rmmds=search&cur_warehouse=AU
www.banggood.com/Drillpro-10pcs-CCMT060204-HM-YBC251-Carbide-Insert-Titanium-Coated-Carbide-Cutter-p-1139720.html?rmmds=detail-left-hotproducts__1&cur_warehouse=USA
It should take you a very long time to wear out the ones supplied, given the relatively low loadings generally put on boring bars.
Cheers Rob
Thanks Rob...
G'day Rob. Great review.
Thanks for the tip Rob. After watching your video, I went to the Bang Good site and ordered a set for myself. $13 US and free shipping. How can they do that so cheap I'm wondering? Couldn't pass it up.
Yes, it's unreal.
hi rob,you should review a quick change tool post holder next. Hear what I'm saying. you must be one of the last guys using a 4 way tool post and shiming.my god the shiming,having flash backs talking about it.geoff
He He. It's all about rigidity. Maybe one day.
Cheers Rob
I just noticed this set is currently selling on Banggood for about $13 US.
...and now sold out... :(
Gawd. That didn't take long. When I put up the video they had sold 450 sets and now it's 504 and sold out in 12 hours.
Still worth waiting for the restock. It's a great set/value.
Cheers Rob
Hi Andrew,
I just heard back from Banggood and they only expect the restock to take two or three days.
Cheers Rob
G Day Rob, I use these same bars and I reckon they are great also. Great banggood for your buck I reckon.
They certainly are a great buy. I see the price has gone up a bit, but still hard to beat.
Not worth trying to make them at that price.
Cheers Rob
The 7 and 10 mm bars are made by LI FENG JING MI : www.lftool.com/english/index.asp
The 12 mm bar is made by WEILONG CNC : www.wl-tools.com/english/about.asp
Thanks for the tip!
The surface of the outside diameter of the sample should be smoothed first, and the spindle speed is too slow you need more rpm for small boring bars.
The last week I purchase the same set.
Did you get the current price ?
27 usd. EMS shipping via singpost included.
Hey Rob, I found this review really boring!!
Come on, someone had to say it. Seriously great review mate.
Go to the corner of class and say 100 times, don't hassle Rob.
Shipping cost and time are horrid these days.
This is a bit misleading as the boring bar is just steel and not made of carbide. Just uses carbide inserts.
OK. I have changed the title slightly.
Rob
if you loose your screw, your either a screw loose or your screwed. It's a hard life on a lathe.
The smaller is not often the better. The smaller the boring bar, the weaker it is = more chatter
You should always go as large as you can, but if the hole is too small, it ain't going to fit ;)
This is probably a nicely produced video but it's 2 minutes of information painfully stretched into a 24 minute video.