Precision Twist Drill 5998791 Jobber Drill Bit 7/64 in Hss

Product Description

The PRECISION TWIST DRILL 5998791 is a jobber-length drill bit designed for general-purpose drilling in metal and hard materials. It measures 7/64 inch (0.1094 inch decimal) in diameter with an overall length of 2.625 inches and a flute length of 1.5 inches. The bit is manufactured from high speed steel and carries a steam oxide coating to reduce friction and resist corrosion during operation. A standard 118-degree point angle suits the broadest range of common drilling tasks. Licensed trades and industrial maintenance technicians use this bit for production and repair drilling where consistent hole quality and tool longevity are required.

This bit is rated for drilling steel, stainless steel, cast iron, non-ferrous metals, superalloys, titanium, and other hard materials. It is a single-piece, right-hand-cut bit with a straight-cylindrical shank that seats directly into standard drill chucks without adapters. The Series R10 designation places it within the PRECISION TWIST DRILL R10-R15-R18 family of jobber-length HSS bits built to ANSI specification. It is sold individually with a minimum order quantity of 12 units, making it practical for shop stock replenishment.

Key Features

• 7/64 inch diameter with 0.1094 inch decimal equivalent for precise hole sizing
• Steam oxide coating reduces friction and surface corrosion during drilling
• 118-degree standard point angle for broad material compatibility
• Regular spiral, 2-flute design with web-thinned tapered web for improved chip clearance
• Right-hand cut with straight-cylindrical shank for universal chuck compatibility
• Built to ANSI specification under Series R10-R15-R18

Compatibility

Designed as an OEM-style general-purpose jobber drill bit suitable for use in standard three-jaw drill chucks, drill presses, and handheld power drills accepting straight-cylindrical shanks. Rated for use in steel, stainless steel, cast iron, non-ferrous metal, superalloys, and titanium workpieces per material codes P, M, K, N, and S.

Installation Notes

Secure the shank fully in the chuck before drilling and verify the chuck key is removed before starting the tool. Use appropriate cutting fluid or coolant when drilling stainless steel, superalloys, or titanium to manage heat buildup, even though coolant-through is not available on this bit. Follow shop safety practices and applicable ANSI standards for drilling operations. Inspect the cutting edges for wear or chipping before each use and replace bits that show damage to avoid oversize or off-center holes.