Dormer E028 3/4-10 MTT-X High Speed Steel 3 Flute Spiral Flute Semi-Bottoming Machine Tap 0581780

The Dormer MTT-X E028 Powdered-Metal Steel Spiral Flute Tap Has A Round Shank With A Square End, Black Oxide Finish, And A Modified Bottoming Chamfer, And Is Used To Create Right-Hand Threads In A Number Of Materials, With Best Performance In Steel. The Black Oxide Finish Improves Lubricity, Resists Corrosion, And Will Not Chip Or Flake. Black Oxide Also Helps To Prevent Buildup And Welding Of Material On The Tap’s Cutting Edge When Working With Iron And Steel. The Modified Bottoming Chamfer On This Tool Has Additional Length To Reduce Chip Load, Add Tool Life In Difficult-To-Machine Materials, And Permit Higher Tapping Speeds.