Holds all ER8 collets
Made from alloy steel hardened to 54 – 56rc
Precision ground ID thread and taper
ER8M Collet Nut has an id thread of 10mm X .75 pitch
Outside diameter is 12mm
Outside has castle notches for tightening
Use ER8M-Wrench for tightening
Internal cam removes collet when unscrewed
Black oxide finish

ER8A Collet Nut has an id thread of 10mm X .75 pitch
Outside diameter is 13.5mm

Use standard wrench for tightening the nut.