Just found just this type at the local dump 6 hours ago (August 21)!! Still works perfectly. Very heavy 7"- 9" 6000 rpm 15 lbs or more.. Great find. David Alberta
I used to own one 20 year ago it last for years until i sold it. I used it for over head grinding. I don't know if i can do that now 👴 Best grinders ever made!
I used to grind bead welds on large pipelines (30” & 36”). The Wildcat was better but a bit heavier. Got to the point where I could push the edge of the wheel so hard into the pipe they would stop the wheel. Never burned one out personally but have repaired many that got burned out. Used them overhead and horizontally all the time when the pipe was high off the ground. At the end of the day these things will wear you out. It took three men to do a two-person job and the spell-off was welcome.
Thank you for the great comment about using these Grinders in the real world. I'm surprised you could get them to stall out you must have had to put your full body weight into it and we're using the 6000 RPM 7in or the 5000 RPM 9 in
Today I was lucky enough to purchase a 7"/9" angle sander in great condition. However, it came with no guard (after all, it's nominally a "sander"). Since nothing stops it from serving as a grinder, safety demands that I buy something to suit . Do you, Catus, have advice on what contemporary guard works well? Perhaps one of your readers?
I used these grinders at the age of 17 for 4 years before moving onto a technical job. The grinder was used without a guard to grind welds and dress structural steel . I never had an accident using these grinders. For that work we found the guard to be a hinderance. Using that grinder made me somewhat fearless and confident but knowing what the potential was. That grinder is very powerful . I have one now being in used condition and about 40 years old.
@@mikewallace8087 Thanks for sharing your experience. Since it's proving very hard (impossible?) to find a suitable guard, I have given up. I will resort to maintaining good situational awareness.
Do you mean to say that you've tried to find guards for them but was unsuccessful? It's one thing to sand without a guard. I don't know that I'd want sparks flying everywhere, though.
I used to grind beads on the pipeline with the B&D Wildcat. Tuckered me out but I got to the point where I could stop the grinder wheel when bearing down on a bead weld.
Hello Friend ! Recently, I became the owner of a similar device DeWALT 494. This is a very high-quality machine! Despite its weight, it is perfectly balanced. I have only one question - the specification indicates 120v ac / dc! It can really work for DC?
Electrical engineer here: That's right, the vast majority of power tools and blenders, They use something called "Universal Electric Brush Motor". This means that their windings are designed to function as a permanent or switched polarity electromagnet, which allows them to be used in both; direct and alternating current, In fact, in technical service, a quick way to test these motors is to connect them to a 12Volt battery (with a minimum of 3 amp, like those found in a "UPS, a motorcycle or a car). -this makes them rotate at a very low speed and we can detect damaged windings The reason for being called AC-DC tools is mainly due to the fact that mainly in rural communities and some developing countries (mainly from the 1950s onwards) they still used the Old Edison Generators to electrify their community which operated with DC. (In fact, if you are looking for items, particularly Vintage Radios or World War II tools, you will find that these work mostly with high voltage DC) [in the case of the war this was due to the use of chemical battery banks that provided up to 600V in DC] since they were more portable and silent than a generator. -While these motors are still capable of working with AC-DC, they are no longer marked as such since practically no one has a 120V DC supply, (besides being inefficient and dangerous). and because some tools have internal electronics such as soft start mechanisms, digital kick back brakes etc. which are designed to act on AC While it is not a real limitation, they are perfectly usable. -In fact practically all the battery tools and the mountable ones for children such as the Power Wheels use Universal 12V motors so with a simple transformer you can turn them into Wall plug-in devices There are many other applications and uses of universal motors in AC-DC as their performance changes, but it is already something too technical and engineering
I have the one on left from retired construction worker. Didn't know it was so special. Recently used to grind down large section of frost heaved concrete.
all angle grinders have gear reduction, the the smaller the grinder the faster the wheel can safely spin. If you were you mount a 9 inch wheel on a 11,000 rpm 4-1/2" grinder it would explode and that would be extremely dangerous as pieces have a lot of weight. and yes many people have been seriously injured doing things like this.
They carried over into dewalt as the dw494. They added an o ring to the gear box for leaks. I cut and ground up to 36 inch h beams and mitered 8 and 12 inch pipe with these for 26 years. For some reason the pipe muttering would loosen the pinion gear on armature. So brand new out of the box I would install a new one quarter 28 tpi locknut with blue locktite and tighten just to the point of or before stripping and then I would have no problems. If that nut comes loose by the time it's making noise the damage is done. They stopped making these along with the dw 131 half inch drill and the three quarter drill. 3 mistakes as far as I see it. They were great tools.
The switches in these were fairly standardized there'll be some modern tool that uses the same switch like a big Milwaukee or makita grinder it'll take some hunting through the parts websites
Just found just this type at the local dump 6 hours ago (August 21)!! Still works perfectly. Very heavy 7"- 9" 6000 rpm 15 lbs or more..
Great find.
David
Alberta
It might be nice to give the gearbox some new grease and check the brushes
I have had my 4075 for 25 years at least. I just now need a switch for it is very heavy duty and I have used it thousands of times!
I used to own one 20 year ago it last for years until i sold it. I used it for over head grinding. I don't know if i can do that now 👴
Best grinders ever made!
I used to grind bead welds on large pipelines (30” & 36”). The Wildcat was better but a bit heavier. Got to the point where I could push the edge of the wheel so hard into the pipe they would stop the wheel. Never burned one out personally but have repaired many that got burned out. Used them overhead and horizontally all the time when the pipe was high off the ground. At the end of the day these things will wear you out. It took three men to do a two-person job and the spell-off was welcome.
Thank you for the great comment about using these Grinders in the real world. I'm surprised you could get them to stall out you must have had to put your full body weight into it and we're using the 6000 RPM 7in or the 5000 RPM 9 in
Today I was lucky enough to purchase a 7"/9" angle sander in great condition. However, it came with no guard (after all, it's nominally a "sander"). Since nothing stops it from serving as a grinder, safety demands that I buy something to suit . Do you, Catus, have advice on what contemporary guard works well? Perhaps one of your readers?
I used these grinders at the age of 17 for 4 years before moving onto a technical job. The grinder was used without a guard to grind welds and dress structural steel . I never had an accident using these grinders. For that work we found the guard to be a hinderance. Using that grinder made me somewhat fearless and confident but knowing what the potential was. That grinder is very powerful . I have one now being in used condition and about 40 years old.
@@mikewallace8087 Thanks for sharing your experience. Since it's proving very hard (impossible?) to find a suitable guard, I have given up. I will resort to maintaining good situational awareness.
@@rachavya are you becoming confident with operating your grinder Raphael?
@@mikewallace8087 Truth be told, I haven't put it to use yet. But I am hoping there will come a time.
. Two years later, have you found the testosterone within you to facilitate the manly operational excellence required to finesse these fine tools?
Dad's got one back from the 40s. Runs great. Unfortunately no guards for any of em. Great grinders.
Do you mean to say that you've tried to find guards for them but was unsuccessful? It's one thing to sand without a guard. I don't know that I'd want sparks flying everywhere, though.
@@rachavya Yes. I don't even know what they look like. Never seen one.
@@TheMetalButcher call dewalt.....they got u...universal guard....mabye $25....tops..
I used to grind beads on the pipeline with the B&D Wildcat. Tuckered me out but I got to the point where I could stop the grinder wheel when bearing down on a bead weld.
Monster pipeline grinder.
Legend.
They are the best Grinder s
Yes they are good
Hello Friend ! Recently, I became the owner of a similar device DeWALT 494. This is a very high-quality machine! Despite its weight, it is perfectly balanced. I have only one question - the specification indicates 120v ac / dc! It can really work for DC?
Electrical engineer here: That's right, the vast majority of power tools and blenders, They use something called "Universal Electric Brush Motor". This means that their windings are designed to function as a permanent or switched polarity electromagnet, which allows them to be used in both; direct and alternating current,
In fact, in technical service, a quick way to test these motors is to connect them to a 12Volt battery (with a minimum of 3 amp, like those found in a "UPS, a motorcycle or a car).
-this makes them rotate at a very low speed and we can detect damaged windings
The reason for being called AC-DC tools is mainly due to the fact that mainly in rural communities and some developing countries (mainly from the 1950s onwards) they still used the Old Edison Generators to electrify their community which operated with DC. (In fact, if you are looking for items, particularly Vintage Radios or World War II tools, you will find that these work mostly with high voltage DC) [in the case of the war this was due to the use of chemical battery banks that provided up to 600V in DC] since they were more portable and silent than a generator.
-While these motors are still capable of working with AC-DC, they are no longer marked as such since practically no one has a 120V DC supply, (besides being inefficient and dangerous). and because some tools have internal electronics such as soft start mechanisms, digital kick back brakes etc. which are designed to act on AC
While it is not a real limitation, they are perfectly usable.
-In fact practically all the battery tools and the mountable ones for children such as the Power Wheels use Universal 12V motors so with a simple transformer you can turn them into Wall plug-in devices
There are many other applications and uses of universal motors in AC-DC as their performance changes, but it is already something too technical and engineering
@@CharlieRAnimaMX Thank you very informative!
I have the one on left from retired construction worker. Didn't know it was so special. Recently used to grind down large section of frost heaved concrete.
Do these have a standard arbor size for wheels?
Yes
Need a handle for mine any help
call dewalt....done....
These are like what? 11 to 12K rpm without the gears?
all angle grinders have gear reduction, the the smaller the grinder the faster the wheel can safely spin. If you were you mount a 9 inch wheel on a 11,000 rpm 4-1/2" grinder it would explode and that would be extremely dangerous as pieces have a lot of weight. and yes many people have been seriously injured doing things like this.
Those grinders are Famous not Infamous .
where can one find these
DeWalt made these until a few years ago look around on eBay or Amazon you'll probably find them
They carried over into dewalt as the dw494. They added an o ring to the gear box for leaks. I cut and ground up to 36 inch h beams and mitered 8 and 12 inch pipe with these for 26 years. For some reason the pipe muttering would loosen the pinion gear on armature. So brand new out of the box I would install a new one quarter 28 tpi locknut with blue locktite and tighten just to the point of or before stripping and then I would have no problems. If that nut comes loose by the time it's making noise the damage is done. They stopped making these along with the dw 131 half inch drill and the three quarter drill. 3 mistakes as far as I see it. They were great tools.
who sells parts for these? need a switch
The switches in these were fairly standardized there'll be some modern tool that uses the same switch like a big Milwaukee or makita grinder it'll take some hunting through the parts websites
I have a B&D 590G type B
All Aluminum handle
Probably a pre wildcat with a aluminum data tag
Im trying to find a guard for mine!
how moch for this machin
You missed out one thing you can screw the knob handle to left or right hand people.
My Dad in the 1980s had dozens of these lol. My dad took the heavy duty grinder to el salvador.
13 amps. Thick power cord
Como hago para desarmarla
B/D Industrial well made
Built to compete with Milwaukee at that time
Great review! Thanx
Thank you and be careful when using these Grinders they are serious
Cuánto sale el dinamo de un black and decker 4027
B&D
Where can I buy some #131602-00 brushes?
Googling the information will help you track them down.