BT30 ER25UM-70L100L ER Collet Chuck

BT30 ER25UM-70L,100L ER Collet Chuck BT30 Tool Holder accepts all ER25 collets ER25 Collets range from 1 mm to 16 mmThe thread inside the internal stop screwMade from alloy steel hardened to 54 56rcBalanced to G6.3 at 12,000 rpmsConcentricity is less than .005 micron up to 100 Length and 0.012 up to 200 Length.All critical tool holder surfaces are precision-groundCoolant through capabilityThe gauge length is 70mm,100MMThe rear thread for the pull stud is M12 X 1.75 All holders can become a through coolant by simply removing the screw in the centre with an allen key. [‘BT-30 Type’, ‘bt30colletchuck’, ‘bt30er25colletchuck’, ‘er25bt30holder’]