Walter-titex 7377778 Carbide Jobber Drill Bit 3/4 in

Product Description

The WALTER-TITEX 7377778 is a solid carbide jobber-length drill bit designed for high-performance drilling in demanding industrial applications. Measuring 3/4 inch (0.7500 inch) in diameter with a 140-degree split-point geometry, this bit delivers fast, accurate penetration with minimal walking on entry. The dual-coat finish — AlTiN and TiSiAlCrN — extends tool life significantly when working in abrasive or heat-generating materials. With an overall length of 153 mm and a 5xD flute-to-diameter ratio, this bit handles moderate-depth blind holes, cross holes, inclined exits, and stack drilling. It is installed by machinists and toolroom professionals in CNC and manual drilling operations.

This drill bit is engineered for use on cast iron, non-ferrous metals, steel, superalloys, and titanium — covering ISO material codes K, N, P, and S. The coolant-through design routes cutting fluid directly to the tip, making it well-suited for CNC machining centers with internal coolant supply. Typical applications include production drilling in aerospace, die-and-mold, and general metalworking environments where tool life and hole quality are critical. The straight-cylindrical shank seats in standard collet or drill-chuck holders without special tooling.

Key Features

• Solid carbide construction for rigidity and wear resistance in hard and abrasive workpiece materials
• Dual coating — AlTiN and TiSiAlCrN — provides heat resistance and extended tool life at high cutting speeds
• 140-degree drill point angle reduces thrust and improves self-centering on entry
• Coolant-through design delivers fluid directly to the cutting edge for chip evacuation and thermal control
• 5xD flute ratio supports drilling to a maximum depth of 77 mm in a single pass
• Straight-cylindrical shank (20 mm diameter) fits standard collet and chuck toolholders
• Conforms to ANSI and ISO standards; material grade WJ30ET

Compatibility

Designed for use in CNC machining centers and drilling machines equipped with internal coolant supply and standard straight-bore toolholders accepting a 20 mm shank. Suited for workpiece materials including cast iron, non-ferrous metals, steel, superalloys, and titanium per ISO material group codes K, N, P, and S.

Installation Notes

This bit is installed by qualified machinists in CNC or manual drilling setups. Ensure the machine spindle and coolant supply are fully shut down before changing tooling. Seat the straight-cylindrical shank fully in the collet or chuck and torque the holder per the toolholder manufacturer's specifications — do not estimate. Verify coolant-through passages are clear before beginning a cut, and confirm maximum drilling depth does not exceed 77 mm without a peck cycle or tool change.