Precise ER-20 Coolant Thru Spring Collets
- Designed for use with cylindrical shank tools, not flats.
- Cutting tool should be inserted the full length of the collet. If these conditions are not met, coolant leakage may result.
- Runout is <= .0005".
- Meets DIN 6499B.
- Major diameter is .830″.
- Overall length is 1.230″.
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