Description
BT30 Er11a-70l,100l Er Collet Chuck
BT30 Tool Holder accepts all ER11 collets
Thread inside internal stop screw
Made from alloy steel hardened to 54 56rc
Balanced to G6.3 at 12,000 rpms
Concentricity is less than .005 micron
All critical tool holder surfaces precision ground
Coolant through capability
Gage length is 70mm
Rear thread for pull stud is M12 X 1.75
All holders have capability to become through coolant by simply removing screw in the center by allen key
