Chicago-latrobe 54088 Cobalt Jobber Drill Bit Size 48

Product Description

The CHICAGO-LATROBE 54088 is a cobalt jobber-length drill bit designed for high-performance drilling in demanding materials. Built to M42 cobalt steel with a titanium nitride (TiN) coating, this bit delivers extended tool life and heat resistance in applications where standard high-speed steel bits wear prematurely. The 135-degree split point starts on contact without center-punching and reduces walking on hard surfaces. At 2 inches overall length with a 1-inch spiral flute, it handles typical jobber-depth holes in stainless steel, alloy steel, and similarly tough workpiece materials. Licensed machinists, maintenance technicians, and fabricators reach for this bit when cutting ferrous metals in production or field repair settings.

The 54088 is sized at wire gauge number 48, equivalent to 0.0760 inches in decimal. Its straight-cylindrical shank seats in standard drill chucks without modification. The right-hand spiral flute configuration evacuates chips efficiently during through-hole and blind-hole operations in stainless steel and carbon steel. The web-thinned, tapered web geometry reduces thrust requirements, which is especially useful in lighter drill presses or hand-held equipment where operator feed force is limited. This bit is built to DIN 338 and NAS 907 Type J standards, confirming dimensional and performance compliance for aerospace and general industrial use.

Key Features

• M42 cobalt steel construction for heat resistance and edge retention in hard materials
• TiN coating extends service life and reduces friction against stainless steel and alloy steel
• 135-degree split point starts on contact, eliminating the need for a center punch on flat stock
• Web-thinned tapered web reduces drilling thrust for use in lighter equipment
• Straight-cylindrical shank fits standard 3-jaw drill chucks without adapters
• Built to DIN 338 and NAS 907 Type J dimensional standards

Compatibility

Designed as a jobber-length replacement drill bit for use in standard drill chucks accepting a 0.0760-inch straight shank. Primary workpiece materials are stainless steel and carbon steel per the manufacturer specification. Conforms to NAS 907 Type J and DIN 338 standards for general industrial and aerospace fabrication applications.

Installation Notes

Install in a drill press, CNC machine, or hand drill with a chuck rated for the 0.0760-inch shank diameter. Secure the shank fully in the chuck jaws before operation. Apply cutting fluid or coolant when drilling stainless steel to manage heat buildup and extend bit life. Inspect the cutting edges before each use and replace the bit if chipping or edge rounding is observed to prevent work-hardening of the hole entrance.