Hydraulic expansion chuck SK 50-32-91 DIN 69871 AD/B in wooden boxApplication: 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 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

parallelism: 0

To increase the specific contact pressure per unit area

For mounting straight-shank tools with lateral flat according to DIN 1835 form B (Weldon)

Surface hardened HRC 58~60

Clamping positions: horizontal

For safe clamping of taps in end mill holders according to DIN 1835 B

Collets sealed for high pressure cooling 120 bar with IC DIN 6499 B (ISO 15488 B) ER-system

driving ring and feather key

Construction:

The tapered tool holder is thus optimally

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

For the chucking of quick change adaptors for taps