Carbide Tipped Negative Point Die Drill
Stock: In Stock.
For drilling hardened steel from 35 to 65 rockwell C. Negative point tools are for higher hardness materials. 118° point tools are for general duty work. In all applications, use generous amounts of coolant, use light feed (.001-.002 IPR) with steady pressure, and keep the workpiece clear of chips. Run at 75-100 SFPM.