The Omega BT40 End Mill Holder (S/L25) is a precision tool holder designed for high-speed milling. It securely clamps BT40 end mills, maintains accurate alignment, and delivers reliable performance in demanding machine shops. Built for engineers, machinists, tradespeople, hobbyists, and contractors alike, it helps you achieve consistent results from setup to finish.

Configured with a 25 mm bore, a 200 mm gauge length, and Form AD/B mounting, this holder provides a compact yet rigid solution for your BT40 spindle system. It is rated for up to 15,000 RPM and manufactured to tight G6.3 precision standards, ensuring repeatable tool seating and stable operation across jobs.

• 15,000 RPM high-speed capability: Enables faster material removal and efficient milling while maintaining secure, precise tool seating for consistent results.
• 25 mm bore size for broad BT40 tooling compatibility: Supports a wide range of end mills with a secure grip, reducing slip and improving surface finish.
• 200 mm gauge length with Form AD/B mounting: Delivers enhanced rigidity and repeatable seating, plus quick, reliable tool changes on standard spindles.

Built from durable materials and engineered for stability, this BT40 holder reduces runout and downtime, helping you improve cycle times, finish quality, and tool life. Its precise alignment and robust construction make it a dependable choice for daily milling tasks, from prototyping to production runs, delivering consistent performance you can count on.