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What size is an ER40 collet?
What does er stand for in collets?
What is er 40?
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$14 to $154
Finish Machining, High Precision 0.0005", ER-40 Collet Chucks Block Set of 2 Square and Hex Workholding Holder for CNC Lathe Engraving Machine.
Feb 14, 2023 · So I'm getting closer to making a ER40 collet chuck for my 9A & I would also like to have a set of ER40 collet blocks .