Hydraulic expansion chuck BT 30-20-90 JIS B 6339 (MAS-BT) AD in wooden box

Application:
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