Precision Twist Drill 5995612 Drill Bit Set 29 Piece Hss

Product Description

The PRECISION TWIST DRILL 5995612 is a 29-piece jobber length drill bit set manufactured from high speed steel (HSS) with a bright, uncoated finish. The set covers a continuous range from 1/16 inch to 1/2 inch in 1/64-inch step increments, giving trades a complete selection for general-purpose drilling in a single indexed case. Bits feature a standard 118-degree split-point geometry and straight shanks, making them compatible with conventional drill chucks. This is a Series L10 set built to ANSI standards and suited for everyday production and maintenance drilling work.

This set is appropriate for use in light industrial, mechanical, HVAC, plumbing, and electrical trade applications where a broad range of hole sizes is required. The 29-piece index covers the most common fractional sizes encountered in sheet metal, structural steel, aluminum, plastics, and general-purpose materials. The included plastic storage case keeps bits organized and indexed by size on the job site or in a service vehicle. Licensed tradespeople and maintenance technicians who need a reliable all-in-one fractional set will find this a practical bench or field kit.

Key Features

• 29 jobber length HSS drill bits covering 1/16 inch to 1/2 inch in 1/64-inch increments
• 118-degree standard point angle for general-purpose drilling across common materials
• Bright, uncoated finish — no coating to chip or flake during regrinding
• Straight shank design fits standard 3-jaw drill chucks
• Series L10 construction built to ANSI dimensional standards
• Indexed plastic storage case included for organized bit selection and transport

Compatibility

Designed as a general-purpose fractional jobber length drill bit set compatible with standard 3-jaw keyed and keyless drill chucks used in portable drills, drill presses, and milling machines that accept straight-shank bits up to 1/2 inch.

Installation Notes

Installation is performed by machinists, maintenance technicians, and trade professionals using a compatible drill or drill press. Ensure the chuck is tightened securely around the straight shank before operation and that the workpiece is clamped or fixtured to prevent movement. Use appropriate cutting fluid or coolant for ferrous metals to extend bit life, noting that this set does not support through-coolant delivery. Inspect bits for wear or damage before each use and replace individual bits as needed to maintain hole quality and dimensional accuracy.