GRS&reg; Tools 022-724 C-Max Carbide Tapered Flat Graver # 37, 0.4 mm Tool Point Strong demand has led to the development of additional C-Max gravers These gravers feature a 1/8"-round shank and are made with the same GRS C-Max carbide as the new C-Max Onglettes Approximately 0.0200 lbs. (0.0091 kg) High quality tools