Hertel 83246454 Carbide Drill Bit 0.1570 in No. 22

Product Description

The HERTEL 83246454 is a solid carbide straight-flute drill bit designed for precision drilling in hard and difficult-to-machine metals. Built from C2-grade carbide with a bright finish, it delivers consistent performance in applications where tool rigidity and dimensional accuracy are critical. The 140-degree notched point and web-thinned geometry reduce entry force and improve chip evacuation. With a diameter of 0.1570 inches and a tight tolerance of +0.0000 to -0.0005 inches, this bit holds size in demanding production environments. Two right-hand cutting flutes provide clean, controlled material removal in ferrous and exotic alloy workpieces.

This drill bit is suited for machining operations involving chrome alloy, heat-treated alloy, nickel alloy, stainless steel, steel, and titanium alloy. It is a No. 22 wire gauge size, making it a standard selection for close-tolerance hole applications in aerospace, industrial, and precision fabrication settings. Machinists and tool and die technicians typically specify this bit for CNC drilling centers, drill presses, and manual machining operations where carbide rigidity outperforms high-speed steel in hardened or abrasive materials.

Key Features

• Solid C2-grade carbide construction for high hardness and wear resistance in tough alloys
• 140-degree notched point reduces thrust load and improves centering on entry
• Web-thinned geometry promotes chip flow and lowers cutting resistance
• Bright finish with no coating — suitable for dry cutting or light lubrication applications
• Diameter tolerance held to +0.0000 to -0.0005 inches for precision fit requirements
• Right-hand cutting, two-flute straight design for maximum rigidity in short-hole drilling

Compatibility

Designed as a standard straight-flute carbide drill bit for use in CNC machining centers, drill presses, and precision drilling fixtures requiring a 0.1570-inch diameter No. 22 wire gauge hole.

Installation Notes

Installation and use of this drill bit should be performed by qualified machinists following standard shop safety procedures. Secure the shank firmly in a compatible chuck or collet rated for the spindle speed and feed rate appropriate to the workpiece material. Do not exceed recommended cutting parameters for carbide tooling, as carbide is brittle and susceptible to breakage under shock loading or excessive lateral force. Inspect the cutting edges before each use and replace if chipping or wear is detected.