Chicago-latrobe 69850 Jobber Drill Bit Set 15 Pc Hss

Product Description

The CHICAGO-LATROBE 69850 is a 15-piece jobber length drill bit set built from high speed steel with an oxide finish. The set covers sizes from 1/16 inch to 1/2 inch in 1/32-inch step increments, giving technicians and tradespeople a continuous range for metalworking and multipurpose drilling applications. Each bit features a 135-degree split point for fast starts without center-punching and a straight shank for compatibility with standard drill chucks. The Series 150ASP designation marks these as high-performance tooling conforming to NAS 907 specification. Right-hand cutting geometry and consistent jobber length make this set a practical bench staple for service shops and field kits alike.

This set is suited for metalworking and general multipurpose drilling in residential and commercial service environments. The 1/16-inch to 1/2-inch range covers the most common hole sizes encountered during HVAC, electrical, plumbing, and general mechanical work. The oxide finish provides light surface protection and reduces friction during cutting. Bits store in a metal or plastic index case that keeps sizes organized and accessible on the job. The NAS 907 specification designation confirms the tooling meets established dimensional and performance standards for industrial-grade drill bits.

Key Features

• 135-degree split point eliminates the need for center-punching and reduces walking on hard surfaces
• High speed steel construction handles steel, aluminum, copper, and general multipurpose materials
• Oxide finish reduces friction and extends cutting life in metalworking applications
• 15-piece set spans 1/16 inch to 1/2 inch in 1/32-inch increments for complete coverage
• Straight shank fits standard keyed and keyless drill chucks
• Conforms to NAS 907 specification for consistent dimensional accuracy

Compatibility

Designed as a jobber length replacement or supplemental drill bit set for standard 3-jaw drill chucks accepting straight shank bits up to 1/2 inch, suitable for metalworking and multipurpose drilling tasks.

Installation Notes

Install bits fully into the chuck and tighten securely before operation. Use appropriate cutting fluid when drilling ferrous metals to extend bit life and reduce heat buildup. Inspect each bit for wear or damage before use and replace any bit showing chipping or excessive wear. Follow shop safety practices including eye protection and secure workpiece clamping.