Chicago-latrobe 44303 No. 33 Hss Jobber Drill Bit

Product Description

The CHICAGO-LATROBE 44303 is a jobber length drill bit from the Series 150D line, sized at No. 33 wire gauge (0.1130 inches decimal equivalent). Manufactured from high speed steel with a bright uncoated finish, it features a standard 118-degree split point and a web-thinned, tapered web configuration for improved centering and reduced thrust. The spiral flute geometry and right-hand cut make this a general-purpose bit suited for production and maintenance drilling. Overall length is 2-5/8 inches with a 1-1/2 inch flute length and a straight-cylindrical shank of 0.1130 inches diameter. Diameter tolerance is held to -0.0005 to 0.0000 inches, meeting DIN 338 standards.

This bit is intended for drilling non-ferrous metals and general-purpose materials in trade and industrial applications. Typical use cases include sheet metal work, electrical box knockouts, plumbing fixture drilling, and light fabrication tasks where a wire-gauge size is specified. The No. 33 size is commonly called out in tap drill charts and precision layout work. It is sold individually and is appropriate for use in hand drills, drill presses, and CNC drilling operations where a straight-cylindrical shank is accepted.

Key Features

• No. 33 wire gauge size, 0.1130 inches decimal equivalent
• High speed steel construction for durability across ferrous and non-ferrous workpieces
• 118-degree standard point angle with web-thinned, tapered web for reduced entry thrust
• Bright uncoated finish compatible with a wide range of cutting fluids and dry applications
• Right-hand spiral flute with regular spiral type for efficient chip evacuation
• Meets DIN 338 standard for jobber length drill geometry

Compatibility

Designed as a general-purpose jobber length drill bit compatible with any drill chuck or collet accepting a 0.1130-inch straight-cylindrical shank, including standard 3/8-inch and 1/2-inch keyed and keyless chucks.

Installation Notes

Secure the shank fully in the chuck before operation and verify chuck key is removed prior to starting the spindle. Always wear appropriate eye protection when drilling. For non-ferrous metals, a cutting fluid or lubricant is recommended to extend bit life and improve hole quality. Inspect the cutting edges for wear before each use and replace the bit if chipping or dulling is observed.