Walter-titex 5057256 Screw Machine Drill Bit 0.2812 in

Product Description

The WALTER-TITEX 5057256 is a screw machine length drill bit designed for high-performance drilling in demanding materials. Built from Cobalt Vanadium High Speed Steel (HSS-Co), it delivers the heat resistance and edge retention needed when drilling stainless steel, hardened materials, cast iron, and non-ferrous metals. The 130-degree split point reduces walking at entry and lowers thrust requirements. A parabolic flute geometry improves chip evacuation and helps maintain cutting efficiency through the full depth of the hole. At 2-29/32 inches overall length with a maximum drilling depth of 0.9000 inches, this bit fits standard screw machine and drill press setups. Installed by machinists, maintenance technicians, and fabricators in shop and field environments.

The 5057256 is suited for production and maintenance drilling in ferrous and non-ferrous workpieces. Its universal tool performance rating and 3xD flute-to-diameter ratio make it effective across a range of materials including steel, cast iron, stainless steel, and hard alloys. The straight-cylindrical shank fits standard drill chucks without adapters. The bright uncoated finish is appropriate for applications where coating adhesion or chemical interaction with cutting fluids is a concern. Series A1148 bits are built to DIN and ISO dimensional standards, making them a reliable fit for metric and inch-based tooling setups.

Key Features

• Cobalt Vanadium HSS construction provides heat and wear resistance for drilling hard and abrasive materials
• 130-degree split point reduces entry walking and lowers axial thrust
• Parabolic flute geometry promotes aggressive chip removal and reduces chip packing
• Web-thinned tapered web configuration improves cutting efficiency at the tip
• Straight-cylindrical shank for direct chuck mounting with no adapter required
• Meets DIN, ISO, and BS dimensional standards for consistent fit across compliant toolholding systems

Compatibility

Designed as a screw machine length drill bit for use in standard drill chucks and drill press spindles accepting a straight-cylindrical shank. Compatible with workpiece materials including steel, stainless steel, cast iron, hard materials, and non-ferrous metals per Series A1148 application guidelines.

Installation Notes

Installation and use should be performed by qualified machinists or maintenance technicians familiar with rotating cutting tools. Secure the shank fully in the chuck and verify runout before beginning a cut. Always power down and de-energize the machine before changing bits or adjusting workpiece fixturing. Follow applicable shop safety standards and the machine manufacturer guidelines for speed and feed settings based on workpiece material and bit diameter.