Deburring Tool Set, Surface Application Front Hole Edge, Blade Material High Speed Steel, Blade Finish Not Applicable, Blade Trade Number B12 Finishing Bit, FC-12, FC-16, FC-20, Work Direction Right Hand/Left Hand, Shank Dia. 3/32 in, Overall Length 1 1/2 in, Number of Blades 4, Primary Material Application Aluminum, Copper, Plastic, Steel, Product Type Deburring Replacement Blade Set