Milling Insert Milling Insert Geometries 銑刀片刀口幾何 Examples of different insert geometries for a specific insert type chart. SG - Positive and small rounded cutting edge. Excellent surface for finishing purpose. 精加工及優良的表面光潔度 MG - Positive and rounded cutting edge. Low cutting force and chattering reduction for light cutting when low forces / power are required. 中加工刀口設計,適合低阻力及低功率的機台使用 RG - Negative and chamfering cutting edge. First recommendation for general machining in mixed production. 一般中粗加工及泛用材料的首選 HG - Negative and big chamfering cutting edge. Strong edge strength for rough operations, forging, cast skin and vibrations. 粗加工及鑄件專用的強力刀口 A004