Hertel 79891982 Carbide Jobber Drill Bit No. 41

Product Description

The HERTEL 79891982 is a solid carbide jobber-length drill bit sized to No. 41 wire gauge (0.0960 inch diameter). Built from C2-grade carbide with a bright finish, it delivers consistent cutting performance in demanding applications where high-speed steel bits fall short. The standard 118-degree split point with web thinning reduces walking and lowers entry thrust. With a 2-inch overall length and 1-inch flute length, it fits standard drill chucks and CNC-tooled applications requiring short, rigid tooling setups.

This bit is suited for precision drilling in metal fabrication, toolroom work, and production environments where tight-tolerance holes are required. The 0.0960-inch diameter with a tolerance of -0.0005 to 0.0000 inch makes it appropriate for close-fit fastener clearance holes, small-diameter through-holes, and pilot drilling in ferrous and non-ferrous materials. It is commonly used by machinists, tool and die makers, and maintenance technicians working in industrial or job-shop settings.

Key Features

• Solid carbide C2-grade construction for extended tool life in hard or abrasive materials
• No. 41 wire size — 0.0960 inch diameter with tight tolerance of -0.0005 to 0.0000 inch
• 118-degree standard point angle with web thinning reduces entry thrust and prevents walking
• Bright finish with tapered web and regular spiral flute for efficient chip evacuation
• Straight-cylindrical shank fits standard drill chucks and collet systems
• Right-hand cut, 2-flute spiral design for consistent hole geometry

Compatibility

Designed as a direct-fit replacement or standard tooling addition for any drill press, CNC machining center, or handheld drill accepting a 0.0960-inch straight-cylindrical shank. Compatible with applications requiring No. 41 wire gauge hole dimensions.

Installation Notes

Installation and use should be performed by qualified machinists or maintenance technicians familiar with cutting tool setup. Secure the shank fully in the chuck or collet before operation and confirm runout is within acceptable limits for the application. Carbide tooling is brittle — avoid side loading, interrupted cuts without proper setup, or dropping the bit on hard surfaces. Ensure the workpiece is properly fixtured before drilling to prevent grab or bit breakage.