The EgiAs coating on these drill bits has a high oxidation temperature and provides excellent hardness and heat resistance. The coating protects the bits from wear in high-speed drilling applications on steel, cast iron, and hardened steel with a Rockwell Hardness of 35 to 50 HRC. Carbide drill bits provide excellent hardness, wear resistance, and heat resistance, but they require a rigid setup such as a drill press. Screw-machine length drill bits are shorter than jobber length and maintenance length drill bits and can access tight spaces where longer drill bits cannot fit. They provide more strength and rigidity and can drill straighter holes than longer drill bits.Flat-bottom drill bits create holes with flat bottoms. The bits shear material as they drill a hole, which minimizes burring at the hole's exit and leaves a smooth finish on the hole. This often eliminates the need for a finishing pass after drilling. Flat-bottom drills are also used for counterboring holes, drilling holes at an angle, and creating intersecting holes and half holes. They can be used for drilling inclined and rounded surfaces, shoulders, or thin plates.

Flat Bottom Drill Bit, Drill Bit Size 7/16 in, 180 Degrees Drill Bit Point Angle, Flat Bottom, Carbide