Hot Picks Bolton Tools ER20 Collet Nut

1. Has an internal thread of M25 × 1.5 pitch

2. Balanced to 20000rpm at G2.5

3. Outside diameter is 1-21/64″(34mm)

4. Outside hex for tightening is 3/16″(30mm) across flats

5. ER20-Wrench works on this collet nut

Product Description

1. Holds all ER20 collets

2. Balanced to 20000rpm at G2.5

3. Fits most tool holders, regardless of brand

4. Made from alloy steel hardened to 48-52HRC

5. Precision ground ID thread and taper

6. Has an internal thread of M25 × 1.5 pitch

7. Outside diameter is 1-21/64″(34mm)

8. Outside hex for tightening is 3/16″(30mm) across flats

9. ER20-Wrench works on this collet nut

10. Internal cam removes collet when unscrewed