Titan Usa CD40905 Jobber Drill Bit Letter D Hss 4 in

Product Description

The TITAN USA CD40905 is a high speed steel jobber-length drill bit sized to Letter D (0.2500 inches decimal), designed for general-purpose drilling in production and maintenance applications. The 118-degree standard point angle provides a self-centering entry suited to a wide range of materials. Bright, uncoated finish keeps the bit running cool in non-ferrous metal work without the added cost of a coating. The right-hand spiral flute configuration evacuates chips efficiently across its 2.75-inch flute length, and the overall length of 4 inches fits standard drill chucks and portable drill presses without modification.

This bit is intended for drilling non-ferrous metals including aluminum, brass, copper, and similar materials. Its 0.2500-inch straight-cylindrical shank fits directly into standard 3-jaw chucks and keyless chucks. Machinists, maintenance technicians, plumbers, and HVAC installers will find this size useful for conduit knockouts, tubing pilot holes, and general metalwork where a Letter D or 1/4-inch equivalent diameter is required. The CD40 series is a production-grade line suited to both shop use and field service kits.

Key Features

• Letter D sizing at 0.2500 inches decimal for precise fit in standard chuck sizes
• 118-degree standard point angle for accurate entry on non-ferrous metals
• High speed steel construction provides hardness and wear resistance without brittleness
• Bright, uncoated finish reduces friction heat in aluminum and copper drilling
• Regular spiral, right-hand cut with 2 flutes for efficient chip evacuation
• Straight-cylindrical shank with zero flats accepts all standard 3-jaw and keyless chucks

Compatibility

Designed as an OEM-style replacement or stock bit for standard 3-jaw and keyless chucks accepting a 0.2500-inch straight-cylindrical shank. Primary workpiece material class is non-ferrous metal per the manufacturer specification.

Installation Notes

Install in a properly rated drill press, hand drill, or CNC spindle with a chuck rated for the shank diameter before applying power. Secure the workpiece firmly before drilling to prevent spinning or shifting. Use appropriate cutting fluid or lubricant when drilling copper or aluminum to extend bit life. Inspect the cutting edges for wear before each use and replace the bit if the point shows chipping or glazing.