Hertel 79892246 Solid Carbide Jobber Drill Bit No. 19

Product Description

The HERTEL 79892246 is a solid carbide jobber length drill bit in wire gauge size No. 19, with a decimal diameter of 0.1660 inches. It features a 118-degree standard point angle and a bright (uncoated) finish suited for general-purpose drilling applications. The 2-flute spiral flute design with regular helix promotes efficient chip evacuation. At 2.75 inches overall length with a 1.625-inch flute length, this bit is sized for typical jobber-length reach. The straight cylindrical shank measures 0.1660 inches in diameter and seats directly in standard drill chucks. Diameter tolerance is held to -0.0005 to 0.0000 inches, reflecting the high-performance grade C2 carbide construction. Web thinning with a tapered web configuration reduces thrust requirements at the point. Machinists, maintenance technicians, and metalworking professionals are the primary users.

This drill bit is appropriate for precision drilling in metals, plastics, and composite materials where solid carbide tooling is specified over high-speed steel. Its jobber length profile fits standard drill chucks on benchtop drill presses, CNC machining centers, and handheld power tools. The bright finish makes it suitable for non-ferrous metals, cast iron, and plastics. The No. 19 wire gauge size fits applications requiring a 0.1660-inch hole, commonly used in tapping operations for 10-32 and similar thread sizes.

Key Features

• Solid carbide construction, grade C2, for high wear resistance in metalworking applications
• 118-degree standard point angle with web-thinned, tapered web for reduced thrust
• Bright finish suited for non-ferrous metals, cast iron, and plastics
• Diameter tolerance of -0.0005 to 0.0000 inches for precise hole sizing
• 2-flute regular spiral for efficient chip removal in jobber-length drilling
• Straight cylindrical shank fits standard drill chucks without adapters

Compatibility

Designed as a standard jobber-length drill bit for use in drill presses, CNC machining centers, and hand-held power tools accepting a 0.1660-inch straight cylindrical shank.

Installation Notes

Installation and use should be performed by qualified machinists or maintenance technicians familiar with rotating cutting tools. Secure the shank fully in the drill chuck and verify runout before drilling. Always wear appropriate eye protection and secure workpieces with proper clamping before operation. Inspect the cutting edges for chipping or wear before each use, as solid carbide is brittle and susceptible to damage from impact or improper feed rates.