Precision Twist Drill 5998347 9/32 Inch Hss Jobber Drill Bit

Product Description

The PRECISION TWIST DRILL 5998347 is a jobber-length drill bit designed for general-purpose drilling in metal and hard materials. It is ground from high-speed steel with a bright uncoated finish and features a standard 118-degree point angle with a web-thinned, tapered web for easier penetration. The straight cylindrical shank measures 9/32 inches in diameter with an overall length of 4.25 inches and a flute length of 2.9375 inches. Two spiral flutes in a regular helix pattern clear chips efficiently during right-hand rotation. This bit is suited for use with standard drill presses and hand drills and is installed by machinists, maintenance technicians, HVAC and plumbing tradespeople, and electricians for everyday hole-making tasks.

This drill bit is intended for drilling into a wide range of workpiece materials including steel, stainless steel, cast iron, non-ferrous metals, superalloys, titanium, and other hard materials. It follows ANSI standards and belongs to the R10P-R15P-R18P series from Precision Twist Drill. With a flute-to-diameter ratio of 10xD and a maximum drilling depth of 2.9375 inches, it handles typical production and field drilling work in both shop and job-site environments. It ships individually and is sold as a single unit.

Key Features

• High-speed steel construction provides hardness and heat resistance for metal drilling
• 118-degree standard point angle with web-thinned tapered web for positive engagement on entry
• Bright uncoated finish — no coating to chip or flake during high-speed use
• Right-hand cut with two regular spiral flutes for consistent chip evacuation
• Straight cylindrical shank fits standard drill chucks without modification
• ANSI-compliant geometry; Series R10P-R15P-R18P jobber-length designation

Compatibility

Designed as a general-purpose jobber-length drill bit compatible with any standard drill chuck accepting a 9/32-inch straight cylindrical shank, suitable for drilling steel, stainless steel, cast iron, non-ferrous metals, superalloys, and titanium.

Installation Notes

Secure the shank fully in the drill chuck before operation and verify chuck is tightened with a chuck key where applicable. Power down and disconnect the drill or press before changing bits. Use appropriate cutting fluid or coolant when drilling hard alloys or stainless steel to extend bit life, even though this bit does not have through-coolant capability. Follow applicable shop safety practices and ANSI B11 machine tool standards for drilling operations.