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This set includes 6 individual ER20 coolant sealing collets in English Sizes
- 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.
- These collets are true English collets. They are not relabeled Metric collets
- The following sizes are included, 3/16, 1/4, 5/16, 3/8, 7/16, 1/2
- Comes in a plastic collet box
- Box dimensions are 7.25"x5.5"x2" tall (with lid closed)