... , Punch, Mold Etc.1.machine reamer usage: Milling fitting holes with a certaindegree of accuracy in machine tools. Semi-finishing and ... non-standard.materialsolid carbide,hss,hss-coworkpiecwood,plywood,steel,aluminum,plastic,glass,stone etctool lifeLonger tool life, super high wear resistant ... degree carbide step reamer drilling and milling reamer and tapered hand reamer with spiral / straight flute