Amana Tool - 51572 Carbide Tipped Bullnose 3/8 Radius x 1-3/8 Dia x 1-5/16 x 1/2" Shan by Amana Tool - 51572 Carbide Tipped Bullnose 3/8 Radius x 1-3/8 Dia x 1-5/16 x 1/2" Shan FeaturesRadius (R) 3/8Cutting height (B) 1-5/16Shank (D) 1/2Diameter (D) 1-3/8Overall length (L) 3-1/4 . .