Omega Products BT40 Slim Shrink Fit Chuck - G2.5 - 25,000RPM - 12mm Clamping Diameter - 160mm Gauge Length

Designed for engineers, machine shops, and hobbyists who demand precision in tight spaces, the Omega BT40 Slim Shrink Fit Chuck is a compact, high‑reliability toolholding solution for BT40 spindle systems. Its slim profile enhances accessibility in crowded setups while delivering secure, repeatable clamping for demanding milling tasks.

Manufactured to BT MAS403 (JIS 6339) standards, this chuck combines a 3-degree taper with Form AD/B and is perfectly balanced to G2.5 at 25,000 RPM. The 12 mm clamping diameter and 160 mm gauge length provide a stable, predictable grip for high‑speed cutting and challenging applications.

• Slim BT40 design for tight access: The compact form and 160 mm gauge length maximize reach in crowded machine bays while preserving rigidity and repeatable accuracy for everyday milling work.
• Rigid shrink‑fit clamping with BT MAS403 quality: Shrink‑fit grip delivers uniform, high‑strength clamping on 12 mm tools with minimal runout, backed by stringent JIS 6339 standards for reliability across shifts.
• Balanced to 25,000 RPM for high‑speed stability: A 3-degree taper and Form AD/B design are balanced to G2.5 at 25,000 RPM, reducing vibration, improving surface finish, and extending tool life.

This chuck helps you move faster through setups, reduces downtime from tool slippage or runout, and delivers consistent results across tough high‑speed milling tasks. With its slim footprint and proven rigidity, you can trust steady performance, longer tool life, and reliable results job after job.