.162 Dia. 5/16 Flute Length 3/16 Shank 2.0 OAL Uncoated center cutting. LakeShore endmills are made from the highest quality micro grain carbide and coatings to deliver the performance of the big name endmills at a little guy price. 30 degree helix helps maximize production in a wide range of materials. An excellent general purpose endmill made in the USA.