Carbide Bur End Type Radius Cut Type Double Shank Dia 1/4 in Head Dia 3/4 in Head Length 1 1/4 in Included Angle Not Applicable Overall Length 3 in Trade Number SF-14 Primary Material Application Brass Bronze Carbon Steel Cast Iron Copper Stainless Steel Steel Titanium Head Shape Tree Operating Speed - Maximum 35 000 RPM List Number 310F System of Measurement Inch Coating Bright (Uncoated) Head Material Carbide Head Material Grade C2 Submicron Shank Material Steel