Harvey Tool 805216 | 1/4" Diameter x 1/4" Shank x 3/4" LOC x 2-1/2" OAL 4 Flute Uncoated Carbide Corner Radius End MillHarvey Tool Corner Chamfer End Mills are CNC ground in the USA from solid carbide, feature a 45 Degree corner chamfer to protect the corners of the end mill, and create consistent heat and wear along the chamfer by distributing forces evenly. Chamfered corner creates consistent heat and wear along chamfer by distributing forces evenly 45 Degree corner chamfer protects corners on the end mill and can create small chamfers and edge breaks Center cutting