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

For machines with rigid tapping

Mainly for external machining

- HRC 43-47

With high precision coolant you get improved

DIN 1835 form A+B+E and DIN 6535 form HA+HB+HE (larger than dia

For the manufacturing of special tools

length adjustment range

Taper angle tolerance < AT 3 according to DIN 2080

driving ring and feather key

better process security and productivity

For safe clamping of taps