Carbide Bur End Type Radius Cut Type Double Shank Dia 1/4 in Head Dia 1/2 in Head Length 3/4 in Included Angle Not Applicable Overall Length 2 1/2 in Trade Number SD-5CO Primary Material Application Cast Iron Non-Ferrous Metals Stainless Steel Steel Head Shape Cylinder Inverted Cone Operating Speed - Maximum 28 000 RPM System of Measurement Inch Coating Bright (Uncoated) Head Material Carbide Shank Material Steel