Product Name: High Precision BSB Toolholder
Surface roughness: Ra <0.005
Product material: High quality 42CrMo
Heat treatment hardness: HRC50-52
Body accuracy: 0.003
1、Vacuum heat treatment, even quenching high hardness, good anti-vibration effect.
2、The shank taper grade <AT3, are tested on the standard checker of DIEBOLD Germany, the accuracy positioning is accurate and stable.