Double Cut design reduces pulling action, chip size and ensures rapid stock removal. Solid carbide brazed to steel shanks.SA-43 / Cylinder, SA-42 / Cylinder, SC-42 / Cylinder w/ radius, SC-41 / Cylinder w/ radius, SD-42 / Ball, SE-41 / Oval, SF-41 / Tree w/ radius, SG-41 / Tree w/pointed end, SJ-42 / 60° Cone, SL-41 / Taper w/ radius, SH-41 / Flame, SN-42 / Inverted Cone, SK-42 / 90° Cone, SB-41 / Cylinder w/ end cut and SB-43 / Cylinder w/ end cut