Walter-titex 5153729 Screw Machine Drill Bit 0.323 in

Product Description

The WALTER-TITEX 5153729 is a screw machine length drill bit designed for high-performance drilling in demanding materials. Built from Cobalt Vanadium High Speed Steel with a bright uncoated finish, it delivers the hardness and heat resistance required for cutting cast iron, stainless steel, hard materials, and non-ferrous metals. The bit measures 0.323 inches (Letter size P) in diameter with an overall length of 3.125 inches and a flute length of 1.4375 inches. A 130-degree split point reduces walking and lowers thrust force at entry. The parabolic flute geometry improves chip evacuation, making this bit well-suited for deeper holes relative to its short-stub profile. Licensed HVAC, plumbing, and electrical mechanics as well as industrial machinists reach for this type of tool on job sites and in shop environments alike.

This drill bit belongs to the WALTER-TITEX A1148 series and is optimized for universal tool performance across a wide range of workpiece materials. It is suited for screw machine applications where a stubby length-to-diameter ratio provides rigidity and accuracy in production drilling setups. The 3xD flute-to-diameter ratio and tapered web configuration support chip clearance during drilling to a maximum depth of 0.900 inches. Typical applications include drilling pilot holes, clearance holes, and through-holes in cast iron, steel, stainless steel, and non-ferrous metals in both shop and field fabrication work.

Key Features

• Cobalt Vanadium High Speed Steel construction for heat and wear resistance in hard materials
• 130-degree split point minimizes walking and reduces entry thrust
• Parabolic flute geometry with web thinning promotes efficient chip evacuation
• Screw machine (stub) length provides added rigidity for accurate hole location
• Right-hand cut with straight-cylindrical shank for standard three-jaw chuck compatibility
• Meets DIN, ISO, and BS specification designations for dimensional conformance

Compatibility

Designed for use in standard three-jaw drill chucks accepting a straight-cylindrical shank. Compatible with primary workpiece materials including cast iron, hard materials, non-ferrous metals, stainless steel, and steel. Part of the WALTER-TITEX A1148 series covering the 0.3000 to 0.3500 inch drill bit diameter range.

Installation Notes

This bit is installed by machinists, fabricators, and trade technicians using standard drill presses, lathes, or handheld power drills equipped with a compatible chuck. Ensure the workpiece is securely fixtured before drilling and that the drill press or tool is powered down and locked out before inserting or removing the bit. Use appropriate cutting fluid or coolant on the workpiece material as recommended by standard shop practice, noting that this bit does not support internal coolant-through delivery. Observe applicable OSHA and shop safety standards when operating rotating cutting tools.