CNC-Drill chuck SK 40 - 1/13 - 90Application: For mounting tools with straight shanks. Delivery: With wrench 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

Measuring surfaces are precision ground for accuracy

For mounting straight-shank tools in collets

For the coolant supply through the centre of PSK toolholders

BT 30 without coolant exit bores on the end face

- Scanning surface Ø24

- Tightness of the screw connection tested up to 80 bar

For measuring the groove diameter of shafts

- Dimensions Ø55x53 mm

Integrated pull-down mechanism

For safe clamping of taps

Adapter / reduction / extension for polygonal hollow shank tapers

With fine adjustment