Helical Solutions 82881 | HSVR-C-RN-M-40375-R.020 0.3750" (3/8) Diameter x 0.3750" (3/8) Shank x 0.0200" Corner Radius x 6.0000" (6) OAL x 0.5000" (1/2) LOC 4 Flute APLUS Coated Corner Radius End MillHelical Solutions 82881 HSVR C RN M 40375 R. 020 0. 3750" (3 8) Cutter DIA x 0. 3750" (3 8) Shank DIA x 0. 0200" Radius x 0. 5000" (1 2) Length of Cut x 6. 0000" (6) Overall Length x 3. 1250" (3 1 8) Reach Carbide Corner Radius End Mill for Steel, 4 Flutes, APLUS Coated (HSVR C RN M 40375 R. 020). From the Helical Solutions End Mills for Steels 4 Flute Corner Radius Chipbreaker Rougher Variable Pitch Reduced Neck product family.