BT30 Tool Holder accepts all ER20 collets
ER20 Collets range from 1 mm to 14 mm
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 upto 100 Length and 0.012 upto 200 Length
All critical tool holder surfaces precision ground
Coolant through capability
Gage length is 70mm,100MM,150MM,200MM
Rear thread for pull stud is M16 X 2.0
All holders have capability to become through coolant by simply removing screw in the center by allen key
Specification
Collet Chuck BT40 Taper MAS 403 follows DIN 6499 standards
The most flexible tool holding system
ER40 Collet Chuck is also called ER Collet Adapter or Holders