BT30 Er11a-70l,100l Er Collet Chuck
TheBT30 Tool Holder accepts all ER11 colletsThread inside the internal stop screwMade from alloy steel hardened to 54 56rcBalanced to G6.3 at 12,000 rpmsConcentricity is less than .005 micronAll critical tool holder surfaces are precision-groundCoolant through capabilityGage length is 70mm
Rear thread for pull stud is M12 X 1.75
All holders can become through coolant by simply removing the screw in the centre with an allen key
