Hertel 04138616 Cobalt Jobber Drill Bit Wire 14 135 Deg

Product Description

The HERTEL 04138616 is a cobalt jobber-length drill bit designed for heavy-duty holemaking in ferrous and work-hardening materials. Sized to wire gauge number 14, it measures 0.1820 inches in diameter with a 3-3/8 inch overall length and a 2-3/16 inch flute length. The 135-degree split point reduces walking on entry and requires less thrust than a conventional 118-degree point. Web thinning and a tapered web configuration further reduce cutting resistance. This bit is suited for machinists, maintenance mechanics, pipefitters, and tradespeople who need consistent performance drilling through hardened steel, stainless, or abrasion-resistant alloys.

This jobber drill is used in hand-held electric drills, drill presses, and machine tool spindles across industrial, commercial, and trade applications. The straight cylindrical shank accepts standard drill chucks without modification. Its regular spiral flute design promotes chip evacuation in deep-hole applications. The oxide and TiN-style gold coating adds surface hardness and reduces friction during the cut, extending tool life in interrupted or continuous drilling operations typical of mechanical, plumbing rough-in, and structural work.

Key Features

• Cobalt construction for heavy-duty drilling in hard and work-hardening materials
• 135-degree split point reduces thrust requirement and prevents bit walking on entry
• Web-thinned, tapered web lowers cutting resistance in deep holes
• Oxide and gold coating adds surface hardness and reduces friction
• Right-hand spiral flute promotes chip evacuation during drilling
• Straight cylindrical shank fits standard drill chucks without adaptation

Compatibility

Designed as a jobber-series replacement drill bit for use in standard drill chucks accepting a 0.1820-inch straight cylindrical shank, suitable for hand-held and stationary drilling equipment across industrial and trade applications.

Installation Notes

Installation and use of this drill bit is typically performed by machinists, pipefitters, and maintenance mechanics. Secure the shank fully in the chuck and verify chuck key is removed before energizing the spindle. Use appropriate cutting fluid or coolant when drilling hardened alloys to preserve edge life. Inspect the cutting edge before each use and replace bits showing chipping or heat discoloration.