Beefy Precision ER 40 Collet Block Set For CNC Lathes And Engraving Machines Hex And Square Blocks With 0.0005 Inch Flatness And Parallelism Heavy Duty Alloy Steel Easy Mounting Built Tough For Parallel Square Or Hex Work

Heavy Duty ER-40 Collet Block Set for CNC Lathes Hex/Square
✔️ 0.0005 in flatness/parallelism, hardened alloy steel, 1 Pack ER-40

These ER-40 collet blocks are heavy-duty fixtures designed to hold and align parallel, square, or hex work on CNC lathes and engraving machines. They enable quick setups, secure clamping, and accurate cross-hole drilling for long parts.

✅ ER-40 Hex Collet Block approx 50 x 75 mm (1.97 x 2.95 in)
✅ ER-40 Square Collet Block approx 45 x 80 mm (1.77 x 3.15 in)
✅ Flatness and parallelism within 0.0005 in (0.013 mm)
✅ Hardened alloy steel construction for durability
✅ Through hole enables machining of long parts
✅ Suitable for parallel, square, or hex work and cross-hole drilling at 60°, 90°, 120°
✅ Pack includes 1 ER-40 Collet Block

💡 What is an ER-40 collet block set used for in CNC lathes and engraving machines for fast, precise setups?

This handy fixture helps align and clamp long parts for consistent work.

- Holds hex, square, or parallel work securely to reduce runout. - Through hole lets you machine long parts without obstruction. - 0.0005 in flatness/parallelism keeps tolerances tight under heavy cuts. - Ideal for quick changeovers and repeatable cross-hole drilling at 60°, 90°, 120°. ✝️