Titan Usa CD40620 5/16 Inch Hss Jobber Drill Bit

Product Description

The TITAN USA CD40620 is a 5/16 inch jobber-length drill bit designed for general-purpose drilling in non-ferrous metals and similar materials. Built from high speed steel (HSS) with a bright, uncoated finish, this bit features a standard 118-degree split-free point that self-centers on contact. The two-flute spiral configuration with regular spiral geometry clears chips efficiently during through-hole and blind-hole drilling. At 4.5 inches overall length with a 3.1875 inch flute length, the CD40620 delivers the reach and cutting depth typical jobber-length applications demand. The straight-cylindrical shank measures 5/16 inch in diameter and seats in standard drill chucks without adapters.

The CD40620 is suited for drilling operations in light fabrication, maintenance, repair, and mechanical assembly work. It is appropriate for use in hand drills, drill presses, and CNC drilling operations where a straight-shank jobber bit is specified. The bright uncoated finish makes it well matched to non-ferrous metals such as aluminum, brass, and copper where coating adhesion or heat buildup is less of a concern. Machinists, millwrights, pipefitters, and general maintenance technicians commonly reach for this size and style for everyday hole-making tasks.

Key Features

• 5/16 inch (0.3125 inch) diameter with a tolerance of -0.0010 to +0.0000 inches for accurate hole sizing
• 118-degree standard point angle for reliable starting on flat and curved surfaces
• High speed steel construction provides good hardness and wear resistance for non-ferrous drilling
• Bright uncoated finish — no coating to chip or flake during regrinding
• 3.1875 inch maximum drilling depth supports through-hole work in most standard stock thicknesses
• Right-hand cut, two-flute regular spiral geometry promotes consistent chip evacuation

Compatibility

Designed as a straight-cylindrical shank jobber drill bit compatible with standard 3-jaw drill chucks and keyed drill chuck systems that accept 5/16 inch shank tooling.

Installation Notes

Secure the shank fully in the chuck jaws before tightening to prevent runout and premature wear. Always power down and lock out the drill press or deactivate the machine spindle before changing bits. Use appropriate cutting fluid or lubricant when drilling into metal to extend bit life, even on uncoated bits. Inspect the cutting edges before each use and regrind or replace the bit if chipping or dulling is observed.