10pcs 1/8 Tungsten Carbide 3mm Drill Bits Rotary Burrs Metal Diamond Grinding

10pcs 1/8 Tungsten Carbuye 3mm Drill Bits Rotary Burrs Metal Diamond Grinding Woodworking Milling Cutters For Dremel Drill bits fresas rotativas de carburo de tungsteno, rectificando eléctronico, doble flauta 10pcs 1/8 из карбида вольфрама dremel два флейта 3mm шлифовальная головка burr, фрезерные работы, фрезы и приставка для гравера и электрошлифования, электрический гравировальный инструмент Applications: Trimming flash edges, burrs and welding lines of casting, forging and welding parts; Finishing various kinds of metal molds; Finishing cast gates of vane wheel; Chamfering,roughing and channeling of various kinds of machinery parts; Finishing the surface of inner bore of machinery parts; Artistic engraving of all kinds of metal or nonmetal part Instructions for users: Must clamp cutter tightly,and not let the shank reach the collet bottom,avoiding the problem of concentric degrees because of uneven bottom Anticlockwise milling is the best, pay attention to exerting pressure too much, usally not exceeding 4Kgs It should not be too fast when the cutter touch the workpiece to prevent gear bursting In order to avoid cutter rupture or bending, It is forbuyden to impact other things when the cutter is working, When using it for oxide or shaggy things, you'd better use old burrs to get rid of surface at first, then use the new one, that could prolong the tool life