MARS-TECH ER NUT ER20 A/M/UM TYPE pack of 1 morse taper holder BT30 Tool Holder accepts all

BT30 Tool Holder accepts all ER11 colletsThread inside the internal stop screwMade from alloy steel hardened to 54 – 56rcBalanced to G6

These Torx screw are hardened up to 50-55 hrc for wear resistance

easy on the tool changers for less spindle and changer maintenance

Stainless Steel

150l Er Collet Chuck

MARS-TECH ER NUT ER20 A/M/UM TYPE pack of 1 morse taper holder BT30 Tool Holder accepts allBoth types hold all ER20 collets from 1 mm to 14 mmMade from alloy steel hardened to 54 56rcPrecision ground ID thread and taperER20A has an ID thread of M25*1. 5PER20A Outside diameter is 34 MMNormal key to tightening The internal cam removes the collet when unscrewedMARSTECH CODE IS ER20A HEX TYPE NUT ER20M has an ID thread of 24mm X 1. 0 pitch ER20M Outside diameter is 1. 102 inches (28mm) Outside has castle notches for tightening ER20M Wrench