S12SCLCR3 CNC Turning Tool Holder | 3/4″ (19.05mm) Shank, 254mm Length for Heavy
S12SCLCR3 Design R3 : Features a 3° lead angle, optimizing cutting force distribution to reduce tool deflection and improve surface finish (Ra 1.6-3.2μm) on rough-to-semi-finish cuts. Ultra-Rigid Build : Crafted from heat-treated 42CrMo alloy steel (HRC 42-49), the 19.05mm shank resists bending even under high torque (common in machining thick cast iron or hardened alloy steel up to HRC 38).