Carbide Bur End Type Radius Cut Type Double Shank Dia 1/8 in Head Dia 1/8 in Head Length 1/2 in Included Angle 14 Degrees Overall Length 1 1/2 in Trade Number SL-42 Primary Material Application Brass Bronze Carbon Steel Cast Iron Copper Stainless Steel Steel Titanium Head Shape Cone Operating Speed - Maximum 90 000 RPM List Number 310L System of Measurement Inch Coating Bright (Uncoated) Head Material Carbide Head Material Grade C2 Submicron Shank Material Carbide