Catalogue number: 1530 Features: ●High quality chrome vanadium steel (SNCM20V) is used. ●In order to ensure uniform and high precision tempering (heat treatment) hardness (HRC60°), a continuous furnace is not used, and a completely non-oxidizing, decarburizing correction quenching method is used in a closed furnace. ●By alternating between the holes, it can be rotated 360°. ●It can be tightened with about four times the normal force. Specifications: ●Total length (mm): 275
