The Omega BT40 ER Collet Chuck, Mini Type, is a compact, high-precision tool holder designed for BT40 spindle systems. Built for reliability in high-speed machining, it delivers tight tool retention and excellent balance in a lightweight package—perfect for precision milling, drilling, and engraving in small to mid-sized shops.

• Spindle Compatibility: Designed for BT40 spindles to ensure secure, repeatable tool seating in standard CNC setups.
• Mini Type ER11 Collet: Uses the ER11 system for versatile toolholding with reliable grip and easy insertion/removal.
• High-Speed Capability: Rated up to 20,000 RPM to support fast-cutting operations and efficient chip evacuation.
• Precision Grade: G2.5 tolerance maintains tight runout and concentricity for consistent cutting performance.
• Gauge Length: 160 mm gauge length provides balanced rigidity and reduces overhang for improved stability.
• Mounting Form: Form AD interface offers secure, repeatable mounting in compatible machines.
• Lightweight & Balanced: Optimized to minimize tool overhang, enhancing spindle balance and surface finish.
• Fast Tool Changes: ER collet system supports quick changes, keeping machining cycles streamlined and productive.

By combining a compact footprint with precise toolholding, this chucker reduces runout-related defects and vibration, leading to cleaner finishes and longer tool life. The 160 mm gauge length and Form AD mounting deliver dependable repeatability across setups, while the 20,000 RPM capability unlocks fast, efficient metal removal for a wide range of applications—from fine detail milling to precision drilling. Ideal for shops that demand accurate, repeatable performance in BT40 machines without sacrificing throughput or ease of use.