Crown Tools 246X 1/8 Inch Diamond Parting Tool 8-1/2 Inch beech handle. Fine quality 1/8-Inch 6mm Diamond Parting Tool. Made from M2 High Speed Steel (Rockwell 62/64) and fitted with ergonomically designed stained beechwood handle with heavy duty brass ferrules. Diamond sections reduces frictionand burning. Gives up to six times the edge life of carbon tools.