ER20A Collet Wrench Spanner for Engraving Machine Chuck

1 Suitable for nut rotation of ER type shank, arbor and extension rod. 2 44-48HRC hardness, tight clamping nut diameter, high rigidity. 3 Made of high quality cast steel, heat treated, high hardness, not easy to crack. 4 The handle is designed to hold the wrench tightly and saves effort during use. 5 High work efficiency, long-term use is not easy to fatigue.

What's in the box
1 x Collet Chuck Wrench