Chicago-latrobe 44330 No 60 Hss Jobber Drill Bit

Product Description

The CHICAGO-LATROBE 44330 is a jobber-length twist drill bit in wire gauge size No. 60, corresponding to 0.0400 inches in decimal diameter. Built from high-speed steel with a bright uncoated finish, it features a standard 118-degree split point and a web-thinned, tapered web construction that aids penetration in small-diameter applications. The straight-cylindrical shank matches the 0.0400-inch body diameter for consistent chuck grip. At 1-5/8 inches overall length with an 11/16-inch flute, this bit is sized for precision drilling in light metalworking, instrumentation, and fabrication tasks. It carries a DIN 338 standard designation and is used by machinists, electricians, and HVAC and plumbing technicians for pilot holes and small through-holes.

The CHICAGO-LATROBE 44330 is suited for drilling non-ferrous metals such as aluminum, brass, and copper, as well as plastics and similar materials where a small, clean hole is required. Its general-purpose grade and regular spiral flute make it a standard shop bit for bench drilling, hand drill, and drill press operations. Applications include pilot holes in sheet metal, instrument panel drilling, and fine-assembly work across residential and light commercial trade environments.

Key Features

• Wire gauge No. 60 size, 0.0400 inches decimal diameter
• High-speed steel construction for durability across general-purpose drilling
• 118-degree standard point angle with web-thinned, tapered web for reduced entry force
• Bright uncoated finish suitable for non-ferrous metals and plastics
• Right-hand cut, regular spiral flute for efficient chip evacuation
• Meets DIN 338 standard; Series 150D jobber-length classification

Compatibility

Designed as an OEM-style general-purpose jobber drill bit compatible with standard three-jaw chucks and collet systems accepting a 0.0400-inch straight-cylindrical shank. Primary workpiece material designation is non-ferrous metal per manufacturer specification.

Installation Notes

Install in a drill press, hand drill, or Dremel-style rotary tool with a chuck rated for the 0.0400-inch shank diameter. Secure the workpiece firmly before drilling to prevent walking on entry. Use appropriate cutting fluid or lubricant when drilling metals to extend bit life and maintain hole tolerance. Diameter tolerance is -0.0005 to 0.0000 inches, so avoid side-loading or flexing the bit during use.