Chicago-latrobe 44510 Jobber Drill Bit Wire 40 Left Hand Hss

Product Description

The CHICAGO-LATROBE 44510 is a jobber-length drill bit designed for left-hand cutting in general-purpose metalworking applications. Built from high-speed steel with a bright uncoated finish, it measures 0.0980 inches in diameter (wire size 40) and carries a standard 118-degree point angle with a web-thinned tip for easier penetration. Overall length is 2-3/8 inches with a 1-3/8-inch flute length. The two-flute spiral design with a regular spiral type promotes efficient chip evacuation. Licensed machinists, tool-and-die technicians, and maintenance mechanics install this bit for left-hand extraction work and precision drilling in ferrous materials.

The 44510 is suited for drilling cast iron and steel in both production and maintenance environments. Its straight-cylindrical shank seats securely in standard drill chucks without special tooling. The left-hand cutting direction makes it a practical choice when removing broken studs, extracting damaged fasteners, or drilling pilot holes where reverse-rotation tooling is required. Typical applications include machine shop operations and field maintenance tasks where a general-purpose left-hand bit at the smaller wire-gauge range is needed.

Key Features

• Left-hand cutting direction for broken fastener extraction and reverse-rotation drilling
• High-speed steel construction handles cast iron and steel workpieces
• Web-thinned, tapered-web tip reduces entry force and improves point stability
• Bright uncoated finish allows easy visual inspection of cutting edge wear
• Straight-cylindrical shank fits standard drill chucks and collets sized for 0.0980-inch shanks
• Two-flute regular spiral design promotes consistent chip clearance in through-hole drilling

Compatibility

Designed as a general-purpose left-hand jobber-length drill bit compatible with any drill press, hand drill, or CNC spindle accepting a straight-cylindrical shank at 0.0980 inches. Primary workpiece materials are cast iron and steel.

Installation Notes

Installation of this bit is performed by machinists and maintenance technicians familiar with drill press or handheld drill operation. Secure the shank fully in the chuck and verify runout before drilling. Power down and de-energize the machine before changing bits. Do not exceed the recommended speed range for the workpiece material, and use cutting fluid when drilling steel to extend tool life.