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This set includes 15 individual ER25 collets in 1mm increments
- Total runout less than .0003 on these precise ER25 collets
- Made from alloy steel hardened to 54 - 56rc
- All critical collet surfaces are precision ground for accurate fit
- Full set covers all collet sizes from .039 to .630 (1mm - 16mm)
- The following mm sizes are included - 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16
- Comes in a plastic collet box
- Box dimensions are 8.75"x5"x2" tall (with lid closed)