The Omega Products Standard Reduction Sleeve for Slotted Boring Bars is a precision accessory designed to convert a 25 mm outer diameter tool shank to a 14 mm bore. Built for dependable performance in milling and drilling setups, it provides a secure, repeatable fit when paired with compatible slotted boring bars. Ideal for professional machine shops, fabrication floors, and serious hobbyists, this sleeve’s slotted design accommodates a range of slotted boring bars, enabling fast tool changes and consistent results across jobs. Versatile Slotted-Bore Compatibility: Fits a broad range of slotted boring bars, reducing the need for multiple adapters and keeping your tool rack lean. Precise, Repeatable Accuracy: Machined to tight tolerances to ensure reliable alignment and consistent cut quality, every time. Durable, Reliable Construction: Built to withstand frequent tool changes and busy shop conditions, delivering long service life and steady performance. With the right reduction sleeve in place, you’ll experience quicker setups, less downtime swapping tooling, and more predictable results across jobs. The consistent fit minimizes runout, improves surface finishes, and helps you keep projects on schedule—whether you’re producing parts on a high-volume line or finishing a precision prototype.