Import 27559 Jobber Drill Bit Wire Size 59 Hss

Product Description

The IMPORT 27559 is a wire-gauge jobber-length drill bit sized at No. 59 (0.0410 inches decimal equivalent) for precision small-diameter drilling applications. The bit features a 118-degree standard point angle with web-thinning for improved centering and reduced thrust on entry. Constructed from high speed steel (HSS) with an oxide finish for basic corrosion resistance, it operates with a right-hand spiral flute and a tapered web configuration. The straight-cylindrical shank allows compatibility with standard drill chucks. This bit is suited for metalworking, light fabrication, and maintenance tasks where fine wire-gauge holes are required.

This drill bit is used in applications where very small-diameter holes are needed in metal, plastic, or composite materials. The No. 59 wire size is common in precision metalworking, electronics assembly, and instrument repair. The 1-5/8-inch overall length and 11/16-inch flute length make it appropriate for shallow, accurate holes in confined areas. General-purpose grade classification means it is intended for production drilling, job shop work, and field maintenance use rather than hard-alloy or specialty materials.

Key Features

• Wire size No. 59 with 0.0410-inch decimal diameter for precise small-hole drilling
• 118-degree standard point angle with web-thinned tip for improved penetration and centering
• High speed steel construction provides durability across metals, plastics, and composites
• Oxide coating offers basic rust resistance during storage and use
• Right-hand spiral flute with regular spiral type for efficient chip evacuation
• Straight-cylindrical shank fits standard drill chucks without adapters

Compatibility

Designed as a general-purpose jobber drill bit for use in any standard drill chuck that accepts a 0.0410-inch straight-cylindrical shank.

Installation Notes

This bit is installed and operated by machinists, maintenance technicians, and fabricators using a drill press, hand drill, or CNC spindle. Secure the shank fully in the chuck before use and verify chuck tightness. Use appropriate cutting fluid or coolant for metal drilling to extend bit life, and reduce feed pressure when breaking through to avoid bit deflection or breakage on small-diameter tooling. At this diameter, bits are fragile — avoid lateral loading.