Hydraulic expansion chuck BT 30 - 20 - 90Application: 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

For sealing tools with internal cooling

Excellent performance on various work material: Stainless steel

- with mode

4021 x 20Cr13

prevents over-feeding

Designed with fine adjustment to allow precise movement of the slider

For all solid drills with cylindrical shank according to DIN 6595

Hydraulic or manual clamping

With ball bearing clamping nut

LSCX = Clamping depth

reading parts brushed chromium-plated

Nubs on the top of the inserts