Precision Twist Drill 5995639 Taper Length Drill Bit Set

Product Description

The PRECISION TWIST DRILL 5995639 is a 29-piece taper length drill bit set machined from high speed steel and built for general-purpose metalworking. The set covers a continuous range from 1/16 inch to 1/2 inch in 1/64-inch step increments, giving technicians and machinists the coverage needed for a wide variety of hole sizes in a single kit. All bits feature a 118-degree standard point, a straight shank, and a bright uncoated finish. Conforming to ANSI specifications, the Series R51 bits are sized to the inch system and ship in a metal storage case that keeps the set organized on the job or at the bench.

This set is suited for metalworking and multipurpose drilling applications in both shop and field environments. The taper length body is longer than a jobber-length bit, which provides additional reach for deeper holes or setups where a standard-length bit falls short. The range from 0.06 inch to 0.5 inch covers common fastener clearance, tapping, and reaming prep holes encountered in HVAC, plumbing, electrical, and general fabrication work. The metal index case allows quick size identification and protects the cutting edges between uses.

Key Features

• 29 taper length bits covering 1/16 inch to 1/2 inch in 1/64-inch increments
• High speed steel construction for durability across a range of metals
• 118-degree standard point angle for general-purpose drilling
• Bright uncoated finish, Series R51, straight shank
• ANSI-specification sizing for consistent dimensional accuracy
• Metal index case included for organized storage and transport

Compatibility

Designed as a general-purpose taper length drill bit set for use in standard drill chucks and drill presses capable of accepting straight shank bits up to 1/2 inch.

Installation Notes

Installation and use of this set is performed by machinists, maintenance technicians, or trade professionals using a handheld drill or drill press. Ensure the chuck is fully tightened and the workpiece is securely clamped before drilling. Use appropriate cutting fluid when drilling harder metals to extend bit life and improve hole quality. Inspect each bit for wear or damage before use and replace any bit showing chipping or heat discoloration at the cutting edge.