Burraway tools are furnished with Double-Acting High Speed Steel (HSS) blades for burr removal on both the front and back sides of the hole as standard. Blades for front-cutting or back-cutting only are available from stock at no additional charge. Various blade rake angles and spring tension options are available and recommended for deburring specific material types. Carbide-tipped blades are available upon request for nominal hole sizes of 3/16 inch (4.76mm) and larger. HSS with TiN (titanium Nitride) coated blades are also available.