วีดีโอ

sir please make a video on drill bit angles measurement. thanks

your video was helpful. thank you keep spreading knowledge

Exilent sir.

tq Sir

tq Sir

Sathiyama puriyala sir Tamil la explain pannunga sir pls pls pls pls pls

textbook??

What textbook are you following for these lectures?

Really helpful sir ☺️

Sir take care of background sound, it is making chaos...