Hex Chuck Block Set — hardened tool steel collet block compatible with ER25, ER32, ER40 collets Key benefits Versatile workholding: Use the block in both upright and horizontal positions for a wide range of CNC lathe and engraving machine operations, reducing the number of fixtures required. Holds long parts securely: The throughhole design accommodates long workpieces so you can machine extended shafts or rods without complex fixturing. Fast setup and reduced downtime: The hexagonal profile enables quick tool changes and repeatable, secure clamping for more efficient workflows. Durable performance: Made from hardened tool steel for strength and lasting hardness in demanding workshop environments. What it does for you Simplifies setups by accepting ER25, ER32, and ER40 collets, letting you use the same block across multiple collet sizes and part types. Improves throughput by minimizing repositioning and allowing rapid changeover between jobs. Maintains secure, concentric clamping to support consistent machining results and reduce rework. Important attributes Compatibility: ER25, ER32, ER40 collets Material: Hardened tool steel Feature: Throughhole design for longpart machining Shape: Hexagonal for fast, secure workholding Use positions: Upright and horizontal Typical applications Turning long shafts on a CNC lathe: Mount an ER collet in the block and use the throughhole to support long, slender parts for turning operations without additional support hardware. Precision engraving or finishing: Hold small to medium parts firmly in an engraving machine in the upright position for detailed work and fast job changeovers. Secondary operations and batch work: Use the hex chuck block on horizontal setups for drilling, milling, or repeated production runs where quick collet swaps and secure clamping save setup time. Practical advantages One block supports multiple collet sizes and part lengths, reducing tooling inventory. Hardened tool steel construction resists wear and maintains clamping integrity under heavy use. Hexagonal design speeds changeovers while maintaining rigid, repeatable positioning. Use this Hex Chuck Block set when you need reliable, flexible collet workholding compatible with ER25, ER32, and ER40 collets, especially for longpart machining and fast, repeatable setups on CNC lathes and engraving machines.