High Performance Milling Chuck BT 40-32-90 JIS B 6339 (MAS-BT) 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

For sealing tools with internal cooling in collet chucks

For internal machining with boring bars

For mounting milling cutters with transverse or longitudinal groove

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

4021 x 20Cr13

Effective from low to high coolant pressures

For mounting straight-shank tools in collet chucks DIN 6499

5 with h4-tolerance and Ø 6 – Ø 32 with h6-tolerance6

clamping depth l2 = max

Collets sealed with seal for IC DIN 6499 B (ISO 15488 B) ER-system

For safe clamping of taps

With retaining screw