HSR™ Carbide- and Cermet-Tipped Reaming Tools • Achieve solid carbide and solid cermet metal removal rates from 14–32mm (.551–1.26") with no customisation required. • Ground to H7 tolerance class to accomodate most applications. • Specific coatings and lead configuration for high-speed machining of steel, stainless steel, cast iron, and non-ferrous materials at accelerated speeds. • Coated and uncoated micrograin substrate carbide and coated cermet specifically engineered for reaming. Features and Benefits • Lapped ground leads for high-speed cutting. • Long tool life with increased hole and surface quality. • High metal removal rates at higher speeds and feeds. • Decreased runout and improved straightness due to unequal flutes. • Adjustment screw at straight-fluted HSR reamers to change internal coolant supply from axial to radial. • Optimised coolant options for blind holes and blind hole applications with interrupted cut. Customisation • Diameters up to 50mm (1.968") available with and without internal coolant in 0,001mm steps. • HSR tooling for machining heat-resistant materials is available on request. widia.com W7