Walter-titex 5057121 Screw Machine Drill Bit 0.5 in

Product Description

The WALTER-TITEX 5057121 is a screw machine length drill bit designed for high-performance drilling in demanding production environments. Built from M35 Cobalt Vanadium High Speed Steel, it delivers heat resistance and edge retention when cutting through tough workpiece materials. The 0.5 inch diameter bit features a 130-degree conical point with U-geometry, a parabolic two-flute design, and a web-thinned tapered web configuration for efficient chip evacuation and reduced thrust. With an overall length of approximately 4.02 inches, this short-series bit is suited for use in drill presses, CNC machining centers, and production drilling setups where rigidity and accuracy matter.

This bit is intended for drilling cast iron, stainless steel, hardened materials, non-ferrous metals, and general steel in both job shop and production environments. The screw machine length format provides a stiffer setup than jobber-length bits, reducing deflection in close-tolerance applications. The straight cylindrical shank fits standard drill chucks and collet holders. Licensed machinists, toolroom technicians, and production drilling operators are the primary installers and users. The Series A1148 designation follows DIN 1897 specification, making it a recognized standard in industrial tooling inventories.

Key Features

• M35 Cobalt Vanadium HSS construction for elevated heat and wear resistance
• 130-degree conical point with U-geometry and web thinning for reduced entry force
• Parabolic two-flute design promotes fast chip evacuation in deep holes
• Screw machine length format provides maximum rigidity and minimal deflection
• Bright uncoated finish compatible with a wide range of cutting fluids
• Meets DIN 1897 and ISO standards with h8 diameter tolerance

Compatibility

Designed for use across cast iron, stainless steel, hard materials, non-ferrous metals, and carbon steel workpieces. Compatible with standard drill chucks and collet holders accepting a 0.5 inch straight cylindrical shank. Conforms to DIN 1897 specification under Series A1148.

Installation Notes

Installation and use should be performed by qualified machinists or toolroom technicians familiar with rotating cutting tool safety. Ensure the machine spindle is fully stopped and de-energized before inserting or removing the bit from the chuck or collet. Use appropriate cutting fluid for the workpiece material to extend tool life and maintain hole quality. Do not exceed the rated maximum drilling depth of approximately 1.46 inches in a single pass without pecking to clear chips.