Walter-titex 7287861 Solid Carbide Drill Bit 12.8 Mm

Product Description

The WALTER-TITEX 7287861 is a solid carbide jobber length drill bit designed for high-performance drilling in demanding industrial applications. Built to DC150 Series specifications, it features a TiAlN (titanium aluminum nitride) coating that extends tool life by reducing heat buildup at the cutting edge. The bit measures 12.8 mm in diameter with a 140-degree drill point angle optimized for self-centering entry and reduced thrust force. Overall length is 124 mm (approximately 4.88 inches), with a flute length of 77 mm and a maximum drilling depth of 60 mm. The straight-cylindrical shank measures 14 mm in diameter and 45 mm in length. Coolant-through capability makes this bit well suited for high-feed-rate operations where chip evacuation and thermal control are critical.

This drill bit is rated for use in cast iron, non-ferrous metals, steel, superalloys, and titanium — material grade codes K, N, P, and S. It is a right-hand cut, two-flute spiral design with a 5xD flute-to-diameter ratio, appropriate for blind hole drilling and stack drilling operations. Shank diameter tolerance is m7. Applicable standards include ANSI and ISO. Typical users include machinists, tool-and-die technicians, and precision metalworking shops running CNC or manual drill presses where repeatable hole geometry and extended tool life are required.

Key Features

• Solid carbide construction, grade WJ30RE, for rigidity and wear resistance in hard and abrasive materials
• TiAlN coating reduces thermal load and extends cutting life in high-speed applications
• 140-degree drill point angle improves self-centering and reduces workpiece deformation on entry
• Coolant-through design supports internal coolant delivery for chip flushing and heat control
• Right-hand, two-flute spiral geometry engineered for blind hole and stack drilling
• Straight-cylindrical shank with m7 tolerance ensures accurate seating in standard collets and chucks

Compatibility

Designed for use in CNC machining centers and drill presses equipped with standard straight-shank toolholders or collet systems accepting a 14 mm shank diameter. Rated for cast iron, non-ferrous metals, steel, superalloys, and titanium workpiece materials per DC150 Series application guidelines.

Installation Notes

This drill bit should be installed and operated by qualified machinists or tooling technicians familiar with carbide cutting tool handling. Secure the shank fully in a compatible collet or chuck to the toolholder manufacturer's specified clamping depth before starting the spindle. Carbide is brittle — avoid lateral impacts or side-loading during setup and storage. When using the coolant-through feature, verify that coolant pressure and flow rate are compatible with the machine spindle before operation.