Walter-titex 5059402 Jobber Drill Bit 58 Wire Hss

Product Description

The WALTER-TITEX 5059402 is a jobber length drill bit designed for high-performance drilling in demanding trade and production environments. Built from high speed steel with a bright uncoated finish, this bit carries a wire gauge size of 58, corresponding to a decimal diameter of 0.0420 inches. The 130-degree drill point angle and parabolic flute geometry work together to improve chip evacuation and reduce heat buildup during operation. Overall length is 1-7/16 inches, making it well suited for compact drilling setups. The web-thinned, tapered web construction reduces thrust requirements at entry, supporting consistent, accurate hole starts in both manual and CNC applications.

This drill bit is rated for use in cast iron, non-ferrous metals, and steel. It is suited to both blind hole drilling and stack drilling operations, making it a practical choice for machinists, tooling technicians, and maintenance professionals working in fabrication shops, production facilities, or job-site metalworking. The parabolic flute design provides an 8xD flute-to-diameter ratio, supporting a maximum drilling depth of 0.4720 inches. The straight-cylindrical shank with a diameter of 0.0420 inches fits standard drill chucks and collet systems without modification. Series A1222 identifies this as part of a consistent tooling family built to ANSI and ISO standards.

Key Features

• Wire size 58 drill bit with a decimal diameter of 0.0420 inches for precise small-hole drilling
• 130-degree point angle with web-thinned tapered web for reduced entry thrust and accurate starts
• Parabolic flute geometry with 8xD ratio supports effective chip removal at depth
• High speed steel construction rated for cast iron, non-ferrous metals, and steel
• Suitable for blind hole and stack drilling applications
• Meets ANSI and ISO standards; built to BS and DIN specification designations

Compatibility

Designed as a direct-fit replacement or addition to tooling setups requiring a wire gauge 58 jobber length drill bit. Compatible with standard drill chucks and collet holders accepting a 0.0420-inch straight-cylindrical shank. Primary workpiece material compatibility includes cast iron, non-ferrous metals, and steel.

Installation Notes

Installation and use should be performed by qualified machinists or tooling technicians familiar with small-diameter drill bit handling. Secure the shank fully in a properly sized collet or chuck before operation to prevent runout or bit breakage. Power down and de-energize any drilling machine before changing or inspecting bits. Small-diameter high speed steel bits are susceptible to breakage under side load or excessive feed pressure; use appropriate feed rates for the workpiece material.