The HSK63F Chuck is a steep taper tool holder design for high precision routing. The 1:10 taper shank must be connected to HSK 63F compatible spindle receivers. HSK receivers incorporate segmented collects which expand radially under draw bar pressure to bear against the inner wall of the shank. This causes firm metal to metal contact as well as mating the shank's flange with the receiver.
The clamping pressure on the shaft is generated by an end cap with three hex head bolts.