Hydraulic expansion chuck BT 30 - 18 - 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

With built-in tightening bolt

The steel body is hardened and grinded all-round

4021 x 20Cr13

Setting angle: 95°

better chip evacuation

d = 40/d = 60: For large diameter face mill cutters with four additional threaded holes according to DIN 2079

The base is designed with a thermal heat isolation hand grip

the coolant tube can be moved only to a minimum degree according to DIN (±1°)

driving ring and feather key

clamping depth l2 = max

With adjustable spray nozzle and shim

With internal cooling