ER40 Collet Set 23 Pcs One Eighth To One Inch Pro Grade High Precision Spring Collets For Milling Drilling Boring And Turning Tool Holding Hardened Spring Steel

ER40 Collet Set: 23-Piece for 1/8 to 1 Inch CNC
✔️ 23-piece ER40 collet set, 1/8 to 1 inch, 0.0004" TIR, hardened steel

This 23-piece ER40 precision spring collet set is built for accurate tool holding in CNC milling, drilling, boring, and turning operations. It works with standard ER40 collet chucks and ER40 nuts to deliver reliable grip and consistent machining results.

✅ 23-piece set covering sizes from 1/8" to 1" for broad tool options
✅ Hardened alloy spring steel for strong clamping and wear resistance
✅ Precision ground to 0.0004" TIR for minimal runout and repeatable accuracy
✅ Compatible with standard ER40 collet chucks and ER40 nuts
✅ Supplied in durable yellow carrying case with dedicated slots for quick ID

💡 What is an ER40 collet set used for in CNC machining and toolholding? This handy overview helps buyers understand why it's a good choice. - Fits standard ER40 chucks and ER40 nuts for reliable seating - Reduces runout with precision-ground collets to about 0.0004" TIR - Covers sizes 1/8" to 1" for a wide range of cutting tools

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