Chicago-latrobe 54092 Cobalt Drill Bit Wire 52 135 Deg

Product Description

The CHICAGO-LATROBE 54092 is a cobalt jobber length drill bit designed for high-performance drilling in tough materials. Built to Series 2550 standards and conforming to DIN 338 and NAS 907 Type J specifications, this bit carries an M42 cobalt steel construction with a titanium nitride (TiN) coating for extended wear resistance and heat tolerance. The 135-degree split point reduces walking and cutting force on entry, making it a reliable choice for production work in stainless steel and alloy steels. The bit measures 1.875 inches overall length with a 0.875-inch flute length and a straight-cylindrical shank. Licensed tradespeople and machinists typically install or deploy this bit in hand drills, drill presses, and CNC setups.

This drill bit is sized at wire gauge number 52, with a decimal diameter of 0.0635 inches. It suits applications in metal fabrication, HVAC sheet metal work, plumbing, and general mechanical service where stainless steel or hardened steel components require precision drilled holes. The right-hand spiral flute with regular helix and web-thinned, tapered web design promotes chip evacuation and reduces torque buildup during deep or repeated drilling passes. The TiN coating provides a visible wear indicator and reduces friction against ferrous workpieces.

Key Features

• M42 cobalt steel construction rated for heavy-duty drilling in stainless steel and alloy steel
• 135-degree split point reduces entry walking and lowers thrust force requirements
• Titanium nitride (TiN) coating extends tool life and reduces friction
• Web-thinned, tapered web design aids chip clearance and reduces torque
• Meets DIN 338 and NAS 907 Type J standards for consistent dimensional accuracy
• Straight-cylindrical shank fits standard drill chucks without modification

Compatibility

Designed as a jobber length replacement or production drill bit for applications requiring a 0.0635-inch diameter hole in stainless steel or steel workpieces. Fits any standard drill chuck accepting a 0.0635-inch straight-cylindrical shank.

Installation Notes

This bit is installed and operated by machinists, HVAC technicians, plumbers, and general mechanical tradespeople using hand drills, drill presses, or CNC equipment. Secure the straight shank firmly in the chuck before operation and verify chuck runout is within tolerance for small-diameter bits to avoid breakage. Use appropriate cutting fluid or coolant when drilling stainless steel to manage heat buildup, even though coolant-through is not supported by this bit design. Inspect the TiN coating and cutting edges before each use and replace the bit when visible wear affects hole quality.