The BT40 ER Collet Chuck (ER32) is a precision tool holder built for BT40 spindles, delivering secure tool clamping and stable performance in high-speed milling. It’s ideal for CNC operators and machine shops that demand repeatable seating and clean, consistent finishes.

• Compatibility: BT40 spindle system for quick tool changes and secure mounting on BT40 milling spindles
• Collet system: ER32 collets provide a broad tool range with reliable gripping power for end mills and drills
• Speed range: 15,000–25,000 RPM, enabling versatile cutting speeds across materials
• Precision ratings: G2.5 runout with G6.3 concentricity for tight tolerances and minimal runout
• Gauge length: 200 mm reach to improve access in longer-tool applications while maintaining rigidity
• Form AD: Designed to fit BT40 tooling interfaces with a standard, dependable form for consistent performance

This collet chuck enhances cutting stability and surface quality by delivering precise tool alignment and firm clamping. The ER32 grip expands tool compatibility, while the high-speed capability supports efficient production, from pocketing to contour milling. The 200 mm gauge length provides needed reach without sacrificing rigidity, making it well-suited for challenging milling setups on BT40 machines. Form AD ensures reliable integration into existing BT40 tooling ecosystems with predictable, repeatable results.