Titan Usa CD40308 Jobber Drill Bit Letter H Hss

Product Description

The TITAN USA CD40308 is a Letter H jobber-length drill bit designed for production and maintenance drilling in metal fabrication, machining, and general trade work. Built from high speed steel with a black oxide coating, this bit runs at standard drilling speeds and resists wear and minor corrosion better than uncoated HSS. The 118-degree standard point angle makes it well suited for drilling into flat or pre-punched stock without requiring a pilot hole on most materials. With an overall length of 4.125 inches and a two-flute spiral design, the CD40308 delivers efficient chip evacuation on through-hole and blind-hole applications.

This bit is suited for drilling steel, stainless steel, cast iron, non-ferrous metals, and superalloys including titanium. The 0.2660-inch diameter corresponds to the Letter H size designation, placing it in the 0.2500 to 0.3000-inch range. It is a practical choice for HVAC, plumbing, electrical, and general mechanical trades where metal drilling is part of daily service work. The straight cylindrical shank fits standard drill chucks without adapters, and the right-hand cutting direction is compatible with all standard drilling equipment.

Key Features

• Letter H diameter: 0.2660 inches, within the 0.2500 to 0.3000-inch size range
• High speed steel construction with black oxide coating for wear and corrosion resistance
• 118-degree standard point angle for general-purpose metal drilling
• Two-flute regular spiral design promotes clean chip evacuation
• Maximum drilling depth of 2.875 inches; flute length of 2.875 inches
• Straight cylindrical shank with zero flats for universal chuck compatibility

Compatibility

Designed as an OEM-style replacement and general-use jobber drill bit for standard three-jaw drill chucks accepting a 0.2660-inch straight cylindrical shank. Primary workpiece materials include steel, stainless steel, cast iron, non-ferrous metals, and superalloys and titanium.

Installation Notes

This drill bit is installed by trade professionals including machinists, pipefitters, electricians, and HVAC technicians using standard drill presses, hand drills, or magnetic-base drills. Secure the shank fully in the chuck before operation and verify the chuck is tightened to prevent slippage. Always wear appropriate eye protection and follow applicable OSHA standards when drilling metal. Coolant-through is not supported on this bit; use a suitable cutting fluid applied externally when drilling hard alloys or stainless steel to extend tool life.