HHIP TCMT/HM triangle positive rake carbide insert features with sharp wave cutting edge to reduce cutting force, it is the first choice for semi-finishing of internal holes and allows chips to flow smoothly. XAB749: Cutting edge with special strength and toughness, in an optimal combination with MT-TiCN, thick layer Al2O3TiN coating. It 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. Product Specifications: ASA Insert No.: TCMT-32.53-HM; ISO Insert No.: TCMT16T312HM; I.C. (Inch): 3/8; L: 5/8; S: 5/32; d: 0.17; r: .0472; Grade: XAB749.