Omega Products BT40 Shrink Fit Chucks with Front Face Coolant - G2.5 - 25,000RPM - 12mm - 90mm

The Omega BT40 Shrink-Fit Chuck with Front Face Coolant is a high-precision tool holder designed for BT40 milling centers. It delivers rock-solid tool clamping and repeatable accuracy, helping machinists, engineers, and shop floor operators achieve consistent results on demanding jobs.

Built to BT MAS403 (JIS 6339) standards and designed with an integrated front coolant circuit, it actively cools during high-speed cutting. With a precise 4.5-degree taper and balance rated at G2.5 @ 25,000 RPM, it maintains reliability and smooth operation even in tough production environments.

• Front-face coolant channels for efficient cooling: integrated cooling paths keep the chuck and tool cooler during high-speed milling, reducing heat buildup, preserving tool geometry, and supporting longer tool life and better part finishes.
• BT40 shrink-fit with 12 mm shank capacity: secure, uniform grip on 12 mm tooling with a precise 4.5° taper, delivering repeatable clamping and minimizing runout—even at high speeds; balanced to G2.5 @ 25,000 RPM for smooth, chatter-free operation.
• BT MAS403 (JIS 6339) standard compliance: ensures reliable interchange with compatible tooling and consistent performance across machines, helping you set up quickly and maintain production uptime.

By combining active front-face cooling, robust shrink-fit retention, and strict standards compliance, this chuck supports faster setup, longer tool life, reduced downtime, and consistently precise results across demanding machining applications. It’s a reliable, high-performance choice for engineers, tradespeople, and shop floors that demand repeatable accuracy at speed.