Designed for aligning and enlarging holes in metal, reamers are a key tool on worksites across the world. Reamers play a pivotal role in the industrial machining process, adept at achieving high levels of dimensional accuracy, surface finish, and concentricity in boreholes. By removing excess material and refining diameters to exact specifications, reamers ensure tight fits, reduced friction, and enhanced functionality for critical components. Features Align, clean out and expand holes on site with your Impact Wrench and SITEH3RO™. High performance coating for up to 75% longer tool life. Available in 18 major diameter sizes. Suitable for use in standard 3-jaw drill chucks. Specification Size - 20mm Standard Equipment 1x Rotabroach CR20 SITEH3RO 20mm Car Reamer