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This set includes 14 individual ER20 collets in 1mm increments.
- Total runout less than .0003 on these precise ER20 collets.
- Made from Alloy spring steel and fully hardened.
- All critical collet surfaces are precision ground for accurate fit.
- Full set covers all sizes from .039 to .511 (1mm - 13mm)
- The following mm sizes are included - 1.5, 2, 2.5, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13
- Comes in a plastic box
- Box dimensions are 7.25"x5.5"x2" tall (with lid closed)