The Omega Products Bridgeport Collet (R8) — 4mm is a precision tool holder designed for Bridgeport milling machines with an R8 spindle. It securely grips cutting tools, including end mills, drill bits, and reamers, enabling reliable and accurate milling performances in a wide range of projects. Ideal for both professional shops and hobbyist setups, this collet helps you keep tools firmly in place for consistent results. R8 Bridgeport Compatibility: Specifically engineered to fit Bridgeport milling machines using the R8 spindle taper, delivering a secure grip on your cutting tools for stable, dependable operation. Fast, Easy Tool Changes: Designed for quickSwapping, enabling you to switch between tools with minimal downtime and maintain a smooth, uninterrupted workflow. Versatile, High-Quality Construction: Supports a range of cutting tools — end mills, drill bits, and reamers — with durable, high-quality materials built for repeated use in demanding milling tasks. This 4mm collet is a practical, reliable choice for anyone looking to improve toolholding accuracy, reduce setup time, and achieve consistent results across milling operations on Bridgeport machines with R8 spindles.