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This set includes 8 individual ER40 coolant sealing collets in English Sizes
- Total runout less than .0003 on these precise ER40 collets.
- Made from Alloy spring steel and fully hardened.
- All critical collet surfaces are precision ground for accurate fit.
- The following mm collet sizes are included - 7/16, 9/16, 5/8, 11/16, 3/4, 7/8, 15/16, 1.0
- Comes in a plastic collet box
- Box dimensions are 13"x9"x2.25" tall (with lid closed)