Hydraulic expansion chuck SK 40 - 08 - 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 Delivery: 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

Surface roughness Ra < 0

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

With fi ne adjustment carriage to feed the slider finely

E3= 12 pieces

- Bed height H: 0

5 with h4-tolerance and Ø 6 – Ø 32 with h6-tolerance9

Ø 125 mm with locks

Metal housing with rotating lever gauge

- Higher repeat-accuracy

Construction: Hardened steel

With coolant channels for optimal coolant at the cutting edge

Resolution: