Hydraulic expansion chuck SK 30 - 12 - 72Application: 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

Surface roughness Ra < 0

B4 - 25 x 16 x 30

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

Toolholders suitable for induction-

In order to achieve an optimum sealing the tool must be clamped on the complete length of the ground drill of the collet

- HRC 43-47

with cooling channels

Without wrench

- Especially suitable fore wire EDM

Sealing capacity up to 80 bar

For mounting straight-shank tools and inclined flat according to DIN 1835 form E (Whistle Notch)

For mounting straight-shank tools