Walter-titex 5059387 Jobber Drill Bit Wire 44 Hss

Product Description

The WALTER-TITEX 5059387 is a jobber-length twist drill bit designed for precision hole-making in metalworking applications. Built from high-speed steel with an oxide coating, this 2-flute bit carries a wire size 44 designation and measures 0.0860 inches in diameter. The 130-degree drill point angle and parabolic flute geometry combine to provide efficient chip evacuation and reduced thrust in demanding materials. Overall length is 2-3/32 inches, making it suited for general drilling tasks where a standard jobber reach is appropriate. A licensed machinist or tooling technician is the typical end user for this bit.

This bit targets blind-hole drilling and stack drilling operations in cast iron, non-ferrous metals, and steel. The web-thinned, tapered-web construction lowers the force required to start the cut, which is especially useful in harder stock. The straight-cylindrical shank seats in standard drill chucks without modification. It conforms to ANSI and ISO standards as well as BS and DIN specification designations, making it appropriate for both domestic and international shop environments where tolerance consistency matters.

Key Features

• Wire size 44 at 0.0860 inches diameter with h8 diameter tolerance for close-fit hole applications
• 130-degree point angle with web-thinned, tapered-web construction reduces thrust and improves center-starting accuracy
• Parabolic flute geometry at 8xD flute-by-diameter ratio promotes fast, continuous chip removal in deep passes
• High-speed steel construction with oxide coating provides wear resistance in cast iron, non-ferrous metal, and steel
• Right-hand cut, straight-cylindrical shank compatible with standard drill chucks and CNC toolholders
• ANSI and ISO compliant; meets BS and DIN specification designations

Compatibility

Designed for use in blind-hole and stack drilling operations on cast iron, non-ferrous metals, and steel workpieces. Fits standard drill chucks that accept a 0.0860-inch straight-cylindrical shank.

Installation Notes

Installation and use should be performed by a qualified machinist or tooling professional. Secure the shank fully in the chuck and verify runout before beginning a cut. Ensure spindle speed and feed rate match the workpiece material and bit diameter per established machining tables. Do not exceed the maximum drilling depth of 0.906 inches without retracting to clear chips, particularly in blind-hole applications.