HHIP TNMG/DM triangle negative rake carbide insert is a suitable grades for a wide application. It is good for the finishing, semi-finishing and light roughing of steel, cast steel and stainless steel. Features DM - Widely used chip breaker is used for semi-finishing and finishing of steel and stainless steel. XAB749: Cutting edge with special strength and toughness, in an optimal combination with MT-TiCN, thick layer Al2O3TiN coating. Product Specifications: ASA Insert No.: TNMG-222-DM; ISO Insert No.: TNMG110308DM; I.C. (Inch): 1/4; L: 7/16; S: 1/8; d: 0.09; r: .0157; Grade: XAB749.