Walter-titex 5057216 Screw Machine Drill Bit 0.248 in

Product Description

The WALTER-TITEX 5057216 is a screw machine length drill bit designed for high-performance drilling in demanding industrial and trade applications. Built from cobalt vanadium high speed steel with a bright uncoated finish, it measures 0.248 inches in diameter with an overall length of 2.75 inches. The 130-degree split point and web-thinned, tapered web geometry reduce entry force and improve centering accuracy on tough workpieces. A parabolic flute design promotes efficient chip evacuation at a 3xD flute-to-diameter ratio. The straight cylindrical shank provides secure chuck engagement. This bit is intended for use by machinists, tool and die tradespeople, and industrial maintenance professionals working with precision drilling operations.

This drill bit is engineered for universal performance across a range of workpiece materials including steel, stainless steel, cast iron, hard materials, and non-ferrous metals. Its screw machine length profile makes it well suited for close-quarters drilling and use in drill presses, CNC machines, and manual lathes where a shorter flute length improves rigidity and reduces deflection. The Series A1148 designation reflects compliance with DIN, ISO, and BS standards, making it appropriate for precision manufacturing environments where dimensional tolerances are critical.

Key Features

• Cobalt vanadium high speed steel construction for strength in hard and abrasive materials
• 130-degree split point with web thinning for reduced thrust and self-centering entry
• Parabolic flute at 3xD ratio for improved chip removal in deep-hole applications
• Straight cylindrical shank compatible with standard drill chucks
• Bright uncoated finish suitable for use with or without cutting fluids
• Meets DIN, ISO, and BS standards for dimensional accuracy and performance grade

Compatibility

Designed as a screw machine length replacement drill bit for use in standard straight-shank drill chucks across drill presses, CNC drilling centers, and manual machine tools requiring a 0.248-inch diameter bit in the Series A1148 configuration.

Installation Notes

Installation and use of this drill bit should be performed by qualified machinists or maintenance tradespeople familiar with machine tool operation. Secure the shank fully in the chuck and verify runout before drilling. Power down and de-energize all machine tools before changing bits. Do not exceed the rated maximum drilling depth of 0.800 inches per pass without retracting to clear chips.