High Performance Milling Chuck SK 40-20-90 DIN 69871 AD/B HKS-system in wooden boxApplication: For mounting straight shank tools. All holders are made of forged steel Specific, low warpage hardened Surface hardened HRC 58~60 Hardening depth 0,8mm~0,9mm Taper angle tolerance < AT 3 according to DIN 2080 Surface roughness Ra < 0,4 m Tensile strength in the core of min. 800 N mm after DIN All functional surfaces fine machined

Hardening depth 0

800 N/mm² after DIN

With adjustable spray nozzles

Mainly for external machining

low warpage hardened

With high precision coolant you get improved

For the manufacturing of special tools

- Rustproof

length adjustment range

For mounting straight-shank tools in collet chucks DIN 6499

Tensile strength in the core of min

For machining centres with synchronous spindle