ER40 UM Collet Chuck Wrench Spanner for Lathe CNC Milling Chuck Holder Tools

Features: 100% brand new and high quality Scope of application: suitable for the nuts removal of ER40UM type cutter bar cutter handle and extension rod ER wrench features: simple operation low price high labor intensity Use of ER wrench: tighten it hold the end of the wrench with your hand and tighten it clockwise. Loosen rotate counterclockwise. Wrench opening is 58mm suitable for ER40-UM nut Specification: Type: ER40UM Wrench Wrench opening: 58mm Weight: Approx.432g/15.2oz Package list: 1 x ER16M Wrench(only)