Walter-titex 6968786 Screw Machine Drill Bit 0.2835in Carbide

Product Description

The WALTER-TITEX 6968786 is a solid carbide screw machine length drill bit designed for high-performance drilling in demanding shop and production environments. Measuring 0.2835 inches (7.20 mm) in diameter with an overall length of 3.11 inches, this bit features a 140-degree drill point angle suited for self-centering entry into hard and abrasive workpiece materials. The TiNAl coating improves heat resistance and extends tool life in high-speed applications. A through-coolant design allows internal coolant delivery directly to the cutting edge, reducing heat buildup and chip evacuation problems during deep-hole operations. This bit is installed by machinists, tool-and-die professionals, and production drilling technicians.

The 6968786 is built for universal tool performance across a range of workpiece materials including cast iron, hard materials, non-ferrous metals, and steel. The screw machine length geometry - shorter than jobber length - provides added rigidity in CNC machining centers, drill presses, and automated production setups where runout and deflection must be minimized. The straight-cylindrical shank at 0.3150 inches (8.00 mm) fits standard drill chucks and collet holders without modification. The Series DC150-03-A1 designation identifies this as part of a coordinated family of solid carbide drills conforming to DIN and ISO standards.

Key Features

• Solid carbide construction for rigidity and wear resistance in hard and abrasive materials
• TiNAl coating provides thermal barrier and extends cutting life in high-speed drilling
• Through-coolant design delivers coolant directly to the drill tip for heat control and chip flushing
• 140-degree drill point angle enables self-centering entry and reduced thrust in production drilling
• 2-flute geometry with a 3xD flute-to-diameter ratio supports efficient chip removal
• Conforms to DIN and ISO standards for dimensional consistency and interchangeability

Compatibility

Part of the DC150-03-A1 series, this drill bit is designed for use in CNC machining centers, drill presses, and production drilling equipment accepting a 0.3150-inch straight-cylindrical shank. Rated for cast iron, hard materials, non-ferrous metals, and steel workpieces. Drill bit size falls within the 0.2500 to 0.3000 inch (6.50 to 8.00 mm) size range of this series.

Installation Notes

Installation and operation should be performed by qualified machinists or tooling technicians familiar with carbide tooling requirements. Ensure the spindle and chuck or collet system is fully de-energized and at rest before tool changes. Carbide tooling is brittle - avoid side-loading, impact contact with hard surfaces, or use in applications with interrupted cuts unless the tool is specifically rated for them. Verify coolant-through compatibility with the machine spindle before engaging internal coolant flow.