Chicago-latrobe 54065 Cobalt Drill Bit 23/64 in

Product Description

The CHICAGO-LATROBE 54065 is a cobalt jobber-length drill bit engineered for demanding metal-cutting applications. Built from M42 cobalt high-speed steel and coated with titanium nitride (TiN), it delivers extended tool life and reduced heat buildup when cutting hard or abrasive materials. The 135-degree split point reduces walking on entry and requires less thrust force to start a hole. At 4-7/8 inches overall length with a 3-1/2 inch flute length, this is a standard jobber-length geometry suited for general-purpose drilling in a wide range of setups. It is a Series 2550 heavy-duty bit built to DIN 338 and NAS 907 Type J standards.

This drill bit is designed for drilling stainless steel and steel where heat resistance and edge retention are critical. It fits the work patterns of maintenance machinists, pipefitters, fabricators, and metalworking tradespeople who encounter interrupted cuts, scale, or work-hardened surfaces. The straight-cylindrical shank seats in standard drill chucks without modification, making it compatible with common hand drills, drill presses, and CNC setups. The right-hand spiral flute clears chips efficiently during through-hole drilling.

Key Features

• M42 cobalt steel construction for high heat resistance and durability in hard metals
• Titanium nitride (TiN) coating extends cutting life and reduces friction
• 135-degree split point reduces thrust and eliminates center-punch requirements on most metals
• Web-thinned, tapered web configuration improves chip evacuation and lowers cutting resistance
• Right-hand, regular spiral flute with 2-flute geometry for clean chip clearance
• Meets DIN 338 and NAS 907 Type J specifications for dimensional and performance consistency

Compatibility

Designed as a heavy-duty jobber-length drill bit for use in stainless steel and steel applications. The 23/64 inch straight-cylindrical shank fits any standard drill chuck sized for that shank diameter.

Installation Notes

Installation of this drill bit is performed by machinists, fabricators, or maintenance tradespeople using a drill press, hand drill, or CNC spindle. Secure the straight shank firmly in the chuck before operation and verify the bit is centered and seated before applying feed force. Use appropriate cutting fluid when drilling stainless steel to manage heat and prolong edge life. Inspect the cutting edge for wear before each use and replace when the point shows chipping or heat discoloration.