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This set includes 13 individual ER25 coolant sealing collets in Metric Sizes
- 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
- The following mm sizes are included - 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)