Walter-titex 5058288 Jobber Drill Bit Letter Y Hss

Product Description

The WALTER-TITEX 5058288 is a jobber length drill bit sized to Letter Y (0.4040 inches), manufactured from high speed steel with an oxide coating for improved wear resistance. It features a 118-degree standard drill point angle, a two-flute regular spiral configuration, and a web-thinned, tapered web design that reduces thrust and aids chip evacuation. The straight-cylindrical shank (0.4040 inches diameter) seats securely in standard drill chucks. With an overall length of 5.25 inches and a flute length of 3.4375 inches, this bit is built for consistent, accurate drilling in metal fabrication and general machining environments. It is installed by machinists, tool and die technicians, and maintenance mechanics.

The 5058288 is suited for blind hole drilling and stack drilling applications. Its primary workpiece materials are cast iron and steel, making it a practical choice for production drilling on structural components, machine parts, and fabricated assemblies. The maximum drilling depth is 2.795 inches. The bit conforms to ANSI and ISO standards and carries BS and DIN specification designations, positioning it for use in both domestic and international shop environments where dimensional consistency is required.

Key Features

• Letter Y size: 0.4040 inches decimal equivalent for precise hole sizing
• 118-degree standard point angle with web-thinned, tapered web for reduced entry force
• High speed steel construction with oxide coating for heat and wear resistance
• Two-flute regular spiral design promotes efficient chip removal
• Rated for blind hole and stack drilling tool applications
• Meets ANSI and ISO standards; BS and DIN specification compliance

Compatibility

Designed as a general-purpose jobber length drill bit compatible with standard drill chucks and drilling equipment accepting a 0.4040-inch straight-cylindrical shank. Suitable for drilling cast iron and steel workpieces in production and maintenance machining contexts.

Installation Notes

Installation is performed by machinists or maintenance technicians using a drill press, CNC machining center, or hand-held power drill with an appropriately sized chuck. Secure the straight-cylindrical shank fully in the chuck before operation and verify runout before drilling production parts. Always wear appropriate eye and hand protection when drilling metal. Follow shop safety procedures and applicable ANSI B11 machine tool standards during setup and operation.