Harvey Tool 940809-C6 | 0.1406" (9/64) Diameter x 0.1875" (3/16) Shank x 0.4250" LOC x 3.0000" (3) OAL 7 Flutes AlTiN Nano Coated Carbide High Temp Alloys Square End MillFinish deep within your part with a Variable Helix End Mill for High Temp Alloys Finishers Square Long Reach, which features a reduced neck diameter to avoid heeling and a variable helix design to reduce chatter and harmonics to aid in overall part finish quality. Long reach design for deep cavities and increased rigidity Large core and eccentric relief for improved tool life h6 shank tolerance for high precision tool holders End cutting (not center