Chicago-latrobe 54073 Cobalt Drill Bit 15/32 Inch 135 Deg

Product Description

The CHICAGO-LATROBE 54073 is a jobber-length drill bit designed for high-performance metal drilling in demanding trade and industrial applications. Built from M42 cobalt high-speed steel and finished with a Titanium Nitride (TiN) coating, this bit delivers extended tool life when cutting through tough materials. It features a 135-degree split point that reduces walking on contact, a web-thinned tapered web for reduced thrust, and a right-hand spiral flute for efficient chip evacuation. Overall length is 5.75 inches with a flute length of 4.3125 inches. The straight cylindrical shank measures 15/32 inches in diameter, matching the cutting diameter for chuck compatibility.

This drill bit is suited for use in fabrication shops, maintenance environments, and field metalworking where stainless steel and hard steel alloys are routinely encountered. The TiN coating and M42 cobalt matrix make it particularly effective in applications where standard high-speed steel bits fail prematurely. Typical users include machinists, pipefitters, ironworkers, and mechanical contractors drilling fastener clearance holes, conduit knockouts, or structural steel connections. It is sold individually and is part of the Chicago-Latrobe Series 2550 heavy-duty line.

Key Features

• M42 cobalt steel construction for heat and wear resistance in hard metals
• Titanium Nitride (TiN) coating extends cutting life and reduces friction
• 135-degree split point reduces walking and lowers required thrust
• Web-thinned tapered web for easier penetration in stainless and alloy steels
• Right-hand spiral flute with regular helix for consistent chip clearance
• Meets DIN 338 and NAS 907 Type J standards for dimensional accuracy

Compatibility

Designed for drilling stainless steel and steel workpieces. Fits any standard drill chuck or drill press accepting a 15/32-inch straight cylindrical shank. Conforms to NAS 907 Type J and DIN 338 specifications.

Installation Notes

Use in a drill press, magnetic drill, or hand drill with a chuck capacity that accommodates a 15/32-inch shank. Apply cutting fluid or coolant when drilling stainless steel to manage heat buildup and prolong bit life. Secure the workpiece firmly before drilling to prevent movement and bit breakage. Inspect the cutting edges before each use and replace if chipping or excessive wear is observed.