Walter-titex 5153722 Screw Machine Drill Bit 0.272 in

Product Description

The WALTER-TITEX 5153722 is a screw machine length drill bit designed for high-performance drilling in demanding materials. Built from cobalt and vanadium high speed steel, this bit handles cast iron, stainless steel, hard materials, and non-ferrous metals without sacrificing edge life. The 130-degree split point reduces walking and lowers thrust at entry, while the parabolic flute geometry improves chip evacuation and reduces heat buildup in deep cuts. At 2-29/32 inches overall length with a 0.272-inch diameter (letter size I), it fits standard jobber chucks and screw machine setups common in production and maintenance machining environments. Licensed HVAC, plumbing, and mechanical contractors use this bit when drilling through structural steel, flanges, or heavy-gauge enclosures during system installation.

This bit is suited for screw machine and production drilling applications where shorter flute length and rigid geometry are needed for accuracy and cycle time. The straight-cylindrical shank seats in standard drill chucks without adapters. Its universal tool performance rating covers a wide range of workpiece materials including steel, stainless steel, cast iron, hard materials, and non-ferrous metals, making it versatile for job-site and shop use. The web-thinned, tapered web configuration reduces cutting resistance and helps maintain hole quality when drilling into tough alloys. A maximum drilling depth of 0.900 inches suits most through-hole and moderate blind-hole tasks common in mechanical and trade applications.

Key Features

• Cobalt and vanadium high speed steel construction for extended tool life in hard and abrasive materials
• 130-degree split point reduces thrust and prevents bit walking on curved or uneven surfaces
• Parabolic flute with web-thinned, tapered web design improves chip flow and lowers heat in the cut zone
• Screw machine length body provides added rigidity and precision versus jobber-length alternatives
• Bright/uncoated finish allows visual wear monitoring during use
• Meets DIN, ISO, and BS standards for dimensional accuracy and performance grade classification

Compatibility

Designed as a direct-fit screw machine drill bit for use with standard straight-cylindrical shank drill chucks; Series A1148 designation confirms compliance with DIN and ISO dimensional standards for 0.272-inch diameter screw machine length bits.

Installation Notes

Installation and use should be performed by a qualified machinist or licensed trade professional familiar with rotating cutting tools. Secure the shank fully in a properly sized drill chuck and confirm chuck runout is within tolerance before starting a cut. Always use appropriate cutting fluid or coolant when drilling stainless steel or hard materials, even though this bit does not have internal coolant-through capability. Follow applicable OSHA and shop safety standards for eye protection, workpiece clamping, and spindle speed selection based on material and diameter.