Walter-titex 5057222 Screw Machine Drill Bit 0.2717 in

Product Description

The WALTER-TITEX 5057222 is a screw machine length drill bit designed for high-performance metal drilling across a wide range of workpiece materials. Ground from Cobalt Vanadium High Speed Steel, this bit delivers the heat resistance and edge retention needed for demanding production environments. It features a 0.2717-inch diameter, a 130-degree split point, and a parabolic flute geometry that promotes efficient chip evacuation. The bright uncoated finish suits applications where coating compatibility or re-sharpening frequency is a factor. Licensed trades machinists, tool-and-die shops, and industrial maintenance technicians are the primary users of this series.

This drill bit is suited for screw machine operations, CNC drilling centers, and handheld drilling applications where a compact stub-length tool is preferred for rigidity and reduced deflection. It is rated for use in cast iron, hard materials, non-ferrous metals, stainless steel, and general steel. The right-hand cut and straight-cylindrical shank make it compatible with standard drill chucks and collet holders without modification. The parabolic flute design with a 3xD flute-to-diameter ratio supports drilling depths up to 0.9000 inches in a single pass without pecking in many applications.

Key Features

• 0.2717-inch diameter with a tight tolerance of -0.00087 to 0.00000 inches for consistent hole quality
• 130-degree split point reduces thrust force and self-centers on entry without a pilot hole
• Parabolic flute geometry with web thinning and tapered web configuration for fast chip removal
• Cobalt Vanadium HSS construction provides heat resistance for stainless steel and hard material drilling
• Screw machine (stub) length delivers added rigidity and reduced runout compared to jobber-length bits
• Meets DIN, ISO, and BS specification standards for dimensional and performance compliance

Compatibility

Designed for use with standard straight-shank drill chucks and collet systems. Compatible workpiece materials include cast iron, hard materials, non-ferrous metals, stainless steel, and carbon steel. Series A1148 is classified as a universal-performance grade suitable across a broad range of production and maintenance drilling tasks.

Installation Notes

Install the straight-cylindrical shank securely in a calibrated chuck or collet and verify runout before drilling. Always power down and lock out the machine before changing tooling. Use appropriate cutting fluid or coolant when drilling stainless steel or hard materials to extend tool life, noting this bit does not support through-coolant delivery. Follow applicable shop safety standards and machine manufacturer guidelines for spindle speed and feed rate selection.