Titan Usa CD50028 Cobalt Jobber Drill Bit 7/16 in

Product Description

The TITAN USA CD50028 is a cobalt jobber-length drill bit designed for cutting through stainless steel, superalloys, and titanium — materials that defeat standard high-speed steel tooling. The bit measures 7/16 inch (0.4375 inch) in diameter with a 5.5-inch overall length and a 135-degree split-point geometry that self-centers on contact, reducing the need for a center punch. An oxide and gold coating provides surface hardness and heat resistance during high-friction drilling operations. This bit is part of the Series CD50 line and is sized for use in standard drill chucks across both handheld and stationary setups.

The CD50028 is suited for metalworking applications in industrial, mechanical, and maintenance environments where hard or exotic metals are regularly drilled. A 4-1/16-inch flute length allows clearing chips from deeper bores, and the 9xD flute-to-diameter ratio supports controlled chip evacuation in tight setups. Typical users include machinists, maintenance mechanics, pipefitters, and fabricators working with stainless fastener locations, structural superalloy components, or aerospace-grade titanium stock.

Key Features

• Cobalt construction handles stainless steel, superalloys, and titanium without premature dulling
• 135-degree split point self-centers and reduces walking on hard surfaces
• Oxide and TiN coating adds surface hardness and reduces heat buildup
• 4-1/16-inch flute length supports maximum drilling depth of 4-1/16 inches
• Straight-cylindrical shank (7/16 inch) fits standard drill chucks without adapters
• Two-flute spiral design promotes efficient chip removal during through-hole and blind-hole drilling

Compatibility

Designed for drilling stainless steel, superalloys, and titanium workpieces. Fits any drill chuck accepting a 7/16-inch straight-cylindrical shank. Compatible with handheld drills, drill presses, and milling machine setups where 7/16-inch tooling is specified.

Installation Notes

Secure the straight shank firmly in the chuck before operation and verify runout is within acceptable tolerance for precision work. Use cutting fluid or coolant appropriate for the workpiece material to extend tool life and manage heat, especially in stainless steel and superalloy applications. Reduce feed pressure if the cutting edge shows signs of glazing or work hardening at the bore entry. This bit does not support coolant-through delivery.