Chicago-latrobe 69854 Cobalt Drill Bit Set 60 Pc

Product Description

The CHICAGO-LATROBE 69854 is a 60-piece cobalt screw machine length drill bit set designed for demanding metalworking applications. Built from cobalt high-speed steel with a gold finish, these bits deliver extended heat and wear resistance compared to standard HSS tooling. The 135-degree split-point tip starts on contact without a center punch, reducing walking and improving hole accuracy. All 60 bits feature straight shanks and right-hand cutting direction. This set covers wire gauge sizes 1 through 60 and is suited for production environments, maintenance shops, and tool rooms where consistent performance across a full wire gauge range is required.

This set is engineered for metalworking and multipurpose drilling tasks in both production and general maintenance settings. The screw machine length design provides a shorter, stiffer profile than jobber-length bits, which improves rigidity and reduces deflection in drill press and CNC applications. The full wire gauge range from 1 to 60 makes this set practical for machinists, maintenance technicians, and fabricators who regularly drill tapped holes, clearance holes, and precision fits in steel, stainless, cast iron, and other hard materials.

Key Features

• Cobalt high-speed steel construction for high heat and wear resistance in hard metals
• 135-degree split-point eliminates center-punching and reduces walking at startup
• Gold finish applied to all 60 bits in the set
• Screw machine length profile provides added rigidity over standard jobber-length bits
• Straight shank, right-hand cutting for use in standard drill chucks and CNC toolholders
• Full wire gauge range from 1 to 60 stored in a metal or plastic case

Compatibility

Designed for use in drill presses, CNC machining centers, and hand-held drills equipped with standard straight-shank chucks. Suited for metalworking applications including drilling into steel, stainless steel, cast iron, and other hard materials where cobalt tooling is recommended.

Installation Notes

Installation of drill bits should be performed with the machine in a powered-off, de-energized state before changing tooling. Secure the straight shank firmly in the chuck and verify runout before beginning a drilling operation. Use appropriate cutting fluid or coolant for the workpiece material to extend bit life. Follow applicable OSHA and shop safety standards when operating drilling equipment.