Hydraulic expansion chuck BT 40 - 06 - 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 mounting straight-shank tools with lateral flat according to DIN 1835 form B (Weldon)

To increase the specific contact pressure per unit area

set contains following adaptors:

Flatness: 0

Calibration certificate

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

Clamping accuracy at the centre 0

Rolled thread

M6 - M12 = 10

Test certificate

Applicable up to 100 bar

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