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Item # 72921
ER Chucks are used for precision work.
ER Collets achieve greater grip strength and higher precision than do double angle collets.
To use, first insert the collet into the chuck nut by squeezing the collet and pressing its face into the chuck nut collar ring until the collet collar is fully seated. Then load the collet into the chuck, insert a cutting tool and tighten with the appropriate nut wrench.
For collet removal, simply squeeze the collet while pulling it from the chuck nut at an angle.
Chucks are equipped with a left-handed-threaded stop screw and a chuck nut.
- Tolerance: Guaranteed to be 0.0002" at the collets' nose.
- Accuracy: ER collets are the most accurate collets available.
| Specifications | | Series
| E/R 16
| | Size
| 11/32 in.
| | OD
| 0.699 in., 17 mm
| | O.A.L.
| 1.063 in., 27 mm
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