1/4 in, Head Dia.
,Double Cut 3/8 in, Head Length 3/4 in, Included Angle Not Applicable, Overall Length 2 1/2 in, Trade Number SA-3, Primary Material Application Brass, Bronze, Copper, Ferrous Metals, Nickel, Titanium, Head Shape Cylinder, Operating Speed - Maximum 19,000 RPM, System of Measurement Inch, Coating Bright (Uncoated), Compatible Tool Type Die Grinder, Head Material Carbide, Shank Material Steel Carbide Bur, End Type Flat, Cut Type Double, Shank Dia..Carbide Bur,Cylinder,3/8in.