Walter-titex 7378525 Carbide Drill Bit 0.2835 in 140 Deg

Product Description

The WALTER-TITEX 7378525 is a solid carbide jobber length drill bit engineered for demanding metal cutting applications in professional machining environments. It measures 0.2835 inches in diameter with a 140-degree drill point angle, an overall length of 3.583 inches, and a flute length of 2.087 inches. The bit carries a dual TiSiAlCrN/AlTiN coating that extends tool life and reduces heat buildup at the cutting edge. With a two-flute, right-hand cut configuration and a straight-cylindrical shank, this bit is a direct fit for standard drill chucks and CNC tool holders. The DC160-05-A0 series designation places it in a well-established family of carbide drill bits built for precision metalworking.

This drill bit is designed for cutting cast iron and steel in production and maintenance machining settings. Its 5xD flute-to-diameter ratio and 1.693-inch maximum drilling depth make it suitable for blind holes, cross holes, inclined hole exits, and stack drilling operations. It performs without coolant-through capability, making it compatible with conventional drill setups and machining centers that rely on external coolant or dry cutting conditions. Industrial machinists, tool-and-die technicians, and maintenance machining professionals are the primary users of this bit.

Key Features

• Solid carbide construction with material grade WJ30ET for rigidity and wear resistance in ferrous materials
• Dual TiSiAlCrN/AlTiN coating reduces friction and extends cutting life in cast iron and steel
• 140-degree drill point angle improves self-centering and reduces exit burr on hard materials
• Two-flute right-hand geometry optimized for chip evacuation in blind and cross-hole applications
• Straight-cylindrical shank at 0.3150 inches diameter fits standard ER collets and drill chucks
• Compliant with ANSI and ISO standards for consistent dimensional tolerancing (m7 diameter tolerance)

Compatibility

Designed for use in cast iron and steel workpieces with a drill bit size range of 0.2500 to 0.3000 inches. Compatible with standard straight-shank drill chucks and ER-style collet holders accepting a 0.3150-inch shank. Suitable for CNC machining centers and manual drill presses capable of drilling blind holes, cross holes, inclined hole exits, and stack drilling operations.

Installation Notes

Installation and use should be performed by qualified machinists familiar with carbide tooling handling. Secure the shank fully in the collet or chuck before operation, and verify runout is within tolerance to avoid premature edge chipping. Carbide drills are brittle compared to HSS — avoid side loading or interrupted cuts without confirming the bit is rated for that application. Power down and de-energize all machine motion before changing or adjusting tooling.