Hertel 79892808 Solid Carbide Jobber Drill Bit 7/16 in

Product Description

The HERTEL 79892808 is a solid carbide jobber-length drill bit designed for high-performance drilling in demanding applications. It measures 7/16 inches in diameter with a 4.5-inch overall length and a 2.875-inch flute length. The bit features a standard 118-degree point angle, a bright (uncoated) finish, and a web-thinned, tapered web configuration that reduces thrust and improves chip evacuation at the drill tip. Two spiral flutes in a regular helix pattern provide consistent chip removal. The straight-cylindrical shank seats securely in standard drill chucks. This bit is graded C2 carbide, suited for machinists and tool-and-die professionals working in production or maintenance environments.

This jobber drill bit is intended for use in ferrous and non-ferrous materials where carbide tooling is required for extended tool life or harder workpiece materials. The 7/16-inch diameter falls within the 0.4000 to 0.5000 inch size range, making it a common selection for through-hole and clearance-hole drilling in metal fabrication, general machining, and maintenance repair operations. Right-hand cut orientation is standard for conventional drill press, mill, and handheld drilling equipment. No coolant-through capability is present, so external coolant or cutting fluid should be applied at the cutting zone when drilling heat-sensitive or abrasive materials.

Key Features

• Solid carbide C2 grade construction for extended tool life in hard or abrasive materials
• 118-degree standard point angle for general-purpose drilling
• Web-thinned, tapered web reduces cutting thrust and improves bit entry
• Bright finish with 2-flute regular spiral for efficient chip evacuation
• Straight-cylindrical 7/16-inch shank fits standard three-jaw drill chucks
• Right-hand cut, 4.5-inch OAL jobber-length proportions for reach and rigidity balance

Compatibility

Designed as an OEM-style solid carbide jobber drill bit for use in standard drill presses, CNC machining centers, and handheld drilling equipment accepting a straight-cylindrical 7/16-inch shank.

Installation Notes

This bit is installed and used by machinists, tool-and-die technicians, and maintenance professionals. Ensure the drill chuck or collet is fully tightened and the workpiece is securely fixtured before operation. Because no coolant-through channel is present, apply cutting fluid externally at the point of contact when drilling steel or other heat-generating materials to prevent premature carbide degradation. Carbide tooling is brittle relative to high-speed steel and should not be dropped or subjected to side-loading forces beyond the tool's rated capacity.