Hydraulic expansion chuck SK 40 - 18 - 80Application: For mounting straight shank tools acc. DIN 1835 form A+B+E and DIN 6535 form HA+HB+HE (larger than dia. 20 mm only with reduction sleeve). Note: l1 = max. clamping depth l2 = max. length adjustment range Without 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

With wrench

Schafttoleranz bei Ø 3

Low-vibration boring bars

(without toolholders and inserts)

4021 x 20Cr13

For mounting the coolant tubes in PSK toolholders

Inch/Metric conversion

With securing screws and Tee-nuts

0V Battery

without cooling lubricant supply

Wherever reduced interference contours are required

Coolant pressure up to max