The Groz Reduction Sleeves, also known as Drill Sleeves, are designed to adapt smaller morse taper shank tools to larger machine spindles.

Manufactured from carbon steel these are ground on the outside with a reamed finish on the inside. A permanent marking of the size is made on the tang of each sleeve for convenient use. With precise control over concentricity and taper angles, Reduction Sleeves provide a reliable and efficient solution for adapting smaller tools to larger machine spindles.