Hydraulic expansion chuck SK 40 - 06 - 68

Hydraulic expansion chuck SK 40 - 06 - 68Application: 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

Precision coolant supply: Improves chip evacuation and decreases the risk for chip jamming

Positive clamping due to penetration of the hardened claw tips

ADJRGA = Length adjustment range

00005" / 0

For setting the tool in the HKS collet chucks

T-nuts 18mm

For use on vises

In NC machines (machines without automatic tool changers)

In machining centres (machines with automatic tool changers)

Plug Gauge Accuracy according to DIN 7162/7164

quantity of inserts:

For the coolant supply through the centre of HSK toolholders