I welcome you, my dear friends, to my channel! In this video I will make a device for curvilinear sharpening of spiral drills. I will tell you about the design features, the features of sharpening drills and conduct a test of sharpened drills on this device. Enjoy your viewing!
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On my channel, I do what I like!!! I make homemade crafts, study, invent, conduct experiments, do chemistry.