pMorse Carbide Burr, Premium, Series 5970, Radius, 532 in Head Dia, 58 in Length of Cut, 2 in Overall Length, CylindricalRadius End Shape SC Head Shape, Double Cut Type, 14 in Shank Dia, Solid Carbide Head, Bright Head Coating, 45 deg included Angle, Applicable Materials Brass, Cast Iron and Copper, SC13 industry Specificationp.