Hydraulic expansion chuck BT 40-25-90 JIS B 6339 (MAS-BT) AD/B in wooden boxApplication: 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

For sealing tools with internal cooling

wrench and collets

5 with h4-tolerance and Ø 6 – Ø 32 with h6-tolerance1

For mounting straight-shank tools in collets

low warpage hardened

For horizontal clamping of flat workpieces

5 x 58 x 18

(without toolholders and inserts)

Plug gauge sizes according to DIN 2245

DIN 1835 form A+B+E and DIN 6535 form HB+HE (larger than Ø 20 mm only with reduction sleeve)

- Maximum concentricity <0

tool steel