Cylinder Bur SB End Type Flat Cut Type Single Shank Dia 1/8 in Head Dia 1/4 in Head Length 3/16 in Included Angle Not Applicable Overall Length 1 7/16 in Trade Number SB-51 Primary Material Application Brass Bronze Carbon Steel Cast Iron Stainless Steel Titanium Head Shape Cylinder Operating Speed - Maximum 70 000 RPM Coating Bright (Uncoated) Head Material Carbide Shank Material Steel