Walter-titex 5057088 Screw Machine Drill Bit 0.086 in

Product Description

The WALTER-TITEX 5057088 is a screw machine length drill bit designed for high-performance drilling in demanding trade and industrial applications. Ground from cobalt and vanadium high speed steel, it delivers superior hardness and heat resistance compared to standard HSS tooling. The bit measures 0.086 inches in diameter (wire size 44) with an overall length of 1-9/16 inches and a 130-degree split point angle. A parabolic flute geometry improves chip evacuation and reduces cutting resistance. Licensed machinists, tool-and-die workers, and maintenance technicians install and use this bit in production and repair environments where precision and tool life are critical.

This drill bit is suited for drilling cast iron, stainless steel, hardened steel, hard materials, and non-ferrous metals. The screw machine length format — shorter than a jobber bit — provides added rigidity and reduced deflection in drill press, turret lathe, and screw machine setups. It is equally at home in hand-held drill applications where hole location precision is required. The Series A1148 designation identifies it within the WALTER-TITEX standard catalog lineup, built to DIN and ISO dimensional standards.

Key Features

• Cobalt and vanadium high speed steel construction for elevated heat resistance and tool life
• 130-degree split point reduces walking and lowers thrust force at entry
• Parabolic flute geometry improves chip flow and reduces heat buildup in deep cuts
• Web-thinned, tapered web configuration for reduced cutting torque
• Bright/uncoated finish — no coating to flake or delaminate during regrinding
• Straight-cylindrical shank fits standard drill chucks without adapters
• Conforms to DIN, ISO, and BS dimensional standards

Compatibility

Designed for use in standard straight-shank drill chucks on drill presses, CNC turret lathes, screw machines, and hand-held power drills. Rated for primary workpiece materials including cast iron, stainless steel, steel, hard materials, and non-ferrous metals per Series A1148 application guidelines.

Installation Notes

Install in a properly sized drill chuck and verify chuck is fully tightened before operation. Always power down and de-energize the machine spindle before changing bits. Use appropriate cutting fluid or lubricant when drilling stainless steel or hardened materials to manage heat and extend tool life. Dispose of worn or damaged bits per shop safety protocols — do not attempt to use a bit with visible cracks or chipped flutes.