HSR™ Reaming Tools combine high-performance micrograin substrates, specific coatings, and extremely unequal flutes for outstanding machining results. Increase your productivity with the HSR leads and lapped grinding surface of rake, clearance, and relief angle. HSR Reaming Tools HSR Solid Carbide Reaming Tools • Diameters starting at 1,40mm (.055") with internal coolant supply available as standard. • Ground to H7 tolerance class for use in most applications. • Specific coatings and lead configurations available for high- speed machining of steel, stainless steel, and cast iron. • Uncoated micrograin substrates for machining stainless steel and non-ferrous materials at accelerated speeds. Features and Benefits Customisation • Lapped ground leads for high-speed cutting. • Diameters starting at 1,40mm (.055") up to 14,15mm • Long tool life with increased hole and surface quality. (.557") available with and without internal coolant • High Metal Removal Rates (MRR) at increased speeds in 0,001mm steps. and feeds. • Solid cermet reaming tools and tooling for heat- • Radial coolant supply for through hole applications and resistant materials are available on request. axial coolant supply for blind holes to achieve higher feed rates. • Decreased runout and improved straightness due to unequal flutes. W6 widia.com