Quick change tapping chuck SK 40 - M3-M14 - Gr.1Application: For the chucking of quick change adaptors for taps. 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

With clamping screws

Surface hardened HRC 58~60

For the coolant supply through the centre of PSK toolholders

800 N/mm² after DIN

Easy to read dial face

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

T-nuts 18mm

Clamping range h6 (nominal size only)

Plain clamping nut without grooves for high speed machining

Centering nut (Pair)

Measuring surfaces are carbide

With retaining screw