Hertel 4140075 Cobalt Jobber Drill Bit Wire 13 135 Deg

Product Description

The HERTEL 4140075 is a cobalt jobber-length drill bit in wire gauge size 13, with a decimal diameter of 0.1850 inches. It features a 135-degree split point for self-centering entry and reduced walking on hard or abrasive materials. The TiAlN (titanium aluminum nitride) coating adds heat resistance and extends tool life in demanding cutting applications. At 3.5 inches overall length with a 2.3125-inch flute length, this bit is sized for general-purpose holemaking in metal. It runs a right-hand spiral flute with a regular helix and a straight-cylindrical shank. Licensed machinists, maintenance technicians, and metal fabricators are the primary users.

This drill bit is suited for production and maintenance holemaking in ferrous and non-ferrous metals, stainless steel, high-temperature alloys, and other hard materials where standard high-speed steel bits wear prematurely. The heavy-duty cobalt construction handles elevated cutting temperatures without losing edge integrity. The web-thinned, tapered web geometry reduces thrust and improves chip clearance. It fits standard drill chucks and is appropriate for benchtop drill presses, magnetic drills, and hand-held electric drills. The 0.1850-inch shank diameter matches the cutting diameter, making chuck setup straightforward.

Key Features

• Cobalt construction for heavy-duty cutting in hard and abrasive metals
• TiAlN coating for high heat resistance and extended tool life
• 135-degree split point reduces walking and lowers required entry thrust
• Web-thinned tapered web improves chip evacuation and reduces axial load
• Right-hand regular spiral flute for consistent chip flow
• Straight-cylindrical shank fits standard three-jaw drill chucks

Compatibility

Designed as a standard jobber-length drill bit for use in any drill press, magnetic drill, or hand-held drill accepting a straight-cylindrical shank of 0.1850 inches diameter, within the 0.1500 to 0.2000 inch drill bit size range.

Installation Notes

Installation is performed by machinists or maintenance technicians familiar with metalworking drill practice. Secure the shank fully in the chuck jaws and verify runout before cutting. Use appropriate cutting fluid or coolant for the workpiece material to protect the coating and maintain edge life, noting this bit does not support internal coolant delivery. Inspect the cutting edges for wear or chipping before each use and replace when the split point shows signs of rounding.