本文从尖角铣刀割圆出发，拟出了一套钻头牙轮直铣齿的计算公式。
A set of calculating formulae for vertical milling teeth of drilling bit cones is derived herein from cutting rows with Angle cutters.
弹簧力较小，可避免小铣刀或钻头断裂。
Low sprang force, May avoid the milling cutter or the drill bit break.
多马刀具公司隶属于山特维克集团，擅长制造高质量的圆柄类整体硬质合金和高速钢刀具，例如钻头、丝锥、铣刀、铰刀和螺纹铣刀等。
Part of the Sandvik Group, Dormer's expertise lies in the manufacture of superior round tools - drills, taps, cutters, reamers and thread milling cutters - in Solid Carbide and HSS.
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