Chicago-latrobe 44382 Letter L Hss Jobber Drill Bit

Product Description

The CHICAGO-LATROBE 44382 is a jobber length drill bit sized to letter L, equivalent to 0.2900 inches in diameter, manufactured from high speed steel with a bright uncoated finish. It features a standard 118-degree drill point angle and a two-flute regular spiral configuration with web thinning for improved chip evacuation and reduced thrust at entry. The straight-cylindrical shank measures 0.2900 inches in diameter and seats securely in standard drill chucks. With an overall length of 4.25 inches and a flute length of 2.9375 inches, the 44382 is suited for general-purpose drilling applications. Licensed machinists, maintenance technicians, and trade professionals install this bit in handheld or bench-mounted drilling equipment.

This bit is designed for drilling non-ferrous metals, including aluminum, brass, copper, and similar soft alloys, where clean entry and accurate hole sizing are required. The Series 150D geometry conforms to DIN 338 standards, making it a recognized general-purpose jobber bit for production and service work. Its 0.0561-pound weight keeps tool fatigue low during repetitive drilling tasks. The bright finish is appropriate for non-ferrous applications where coating is unnecessary and dimensional tolerances must be held tightly, with a diameter tolerance range of -0.0010 to 0.0000 inches.

Key Features

• Letter L size: 0.2900 inches diameter with a tight tolerance of -0.0010 to 0.0000 inches
• High speed steel construction for general-purpose durability across non-ferrous materials
• 118-degree standard point angle with web-thinned, tapered web for reduced entry thrust
• Two-flute regular spiral flute design promotes efficient chip clearing
• Bright uncoated finish suits non-ferrous metal drilling where coatings are not required
• Conforms to DIN 338 standard jobber length geometry, Series 150D

Compatibility

Designed as a general-purpose jobber length drill bit for use in standard drill chucks accepting a 0.2900-inch straight-cylindrical shank. Primary workpiece material is non-ferrous metal. No coolant-through capability; suitable for dry or externally lubricated drilling setups.

Installation Notes

Insert the straight-cylindrical shank fully into a keyed or keyless drill chuck and tighten securely before operation. Ensure the drilling machine is powered off and secured before changing bits. Use appropriate cutting fluid or lubricant for the specific workpiece material when required. Inspect the cutting edges for wear or chipping before each use and replace the bit if the point geometry is compromised.