Walter-titex 5057168 Screw Machine Drill Bit 0.1142 in

Product Description

The WALTER-TITEX 5057168 is a screw machine length drill bit designed for high-performance drilling in demanding shop and production environments. Built from Cobalt Vanadium High Speed Steel, this bit holds up under elevated cutting temperatures and resists wear on hard and abrasive workpiece materials. It measures 0.1142 inches in diameter with an overall length of 1-13/16 inches and a flute length of 5/8 inch. The 130-degree split point reduces walking at entry and minimizes thrust load. A parabolic flute geometry promotes efficient chip evacuation, making it well suited for deeper holes relative to the tool diameter. Licensed machinists, tool-and-die workers, and industrial maintenance technicians are the primary users of this series.

The 5057168 is rated for universal tool performance across a range of workpiece materials including steel, stainless steel, cast iron, hard materials, and non-ferrous metals. The screw machine length format — shorter than jobber length — provides added rigidity and reduced deflection, making it a common choice for turret lathes, screw machines, drill presses, and CNC machining centers where stub-length tooling is specified. The straight-cylindrical shank fits standard drill chucks and collet holders without modification. Maximum drilling depth is rated at 0.4000 inches (11.00 mm), consistent with the 3xD flute-to-diameter ratio of the A1148 series.

Key Features

• Cobalt Vanadium HSS construction for heat resistance and extended tool life on hard materials
• 130-degree split point reduces entry thrust and eliminates center-punch requirement on many materials
• Parabolic flute design improves chip flow and reduces clogging in deeper cuts
• Web-thinned, tapered web configuration lowers cutting resistance at the chisel edge
• Bright/uncoated finish — no coating buildup that can affect diameter tolerance in close-tolerance work
• Meets DIN, ISO, and BS standards; Series A1148 designation for easy replacement ordering

Compatibility

Designed as a screw machine length replacement drill bit for production and maintenance drilling applications requiring a 0.1142-inch diameter tool in Cobalt Vanadium HSS, Series A1148, conforming to DIN, ISO, and BS specifications.

Installation Notes

Installation is performed by machinists or maintenance technicians using standard drill chucks or collet toolholders rated for the straight-cylindrical shank diameter. Verify spindle runout is within acceptable tolerance before use, as small-diameter bits are sensitive to chuck eccentricity. Secure the workpiece firmly and use appropriate cutting fluid for stainless steel and hard material applications to maximize tool life. Follow shop safety protocols including eye protection and guarding when operating drilling equipment.