Precision Twist Drill 5998034 7/32 Inch Hss Drill Bit

Product Description

The PRECISION TWIST DRILL 5998034 is a jobber-length twist drill bit designed for general-purpose drilling in metal and hard materials. Built from high speed steel with a steam oxide coating, it measures 7/32 inch (0.2188 inch) in diameter and runs 3.75 inches overall. The 135-degree split point reduces walking on entry and requires less thrust than a standard 118-degree point. With two spiral flutes in a regular helix and a web-thinned tip, this bit is suited for production drilling and maintenance work where consistent hole quality in steel and ferrous alloys is required. Licensed technicians and machinists reach for this size often when drilling pilot holes or clearance holes for common fastener sizes.

This bit is appropriate for drilling steel, stainless steel, cast iron, non-ferrous metals, superalloys, and titanium in both shop and field settings. The straight-cylindrical shank fits standard drill chucks without an adapter. The 2.5-inch flute length supports a maximum drilling depth of 2.5 inches, making it suitable for moderate-depth applications in structural components, sheet metal work, and mechanical assemblies. It is commonly used by HVAC technicians, plumbers, electricians, and general maintenance trades when installing hardware or modifying metal panels and brackets.

Key Features

• 135-degree standard point with web thinning reduces entry force and minimizes bit walking
• Steam oxide coating provides mild lubricity and corrosion resistance during use
• High speed steel construction supports drilling in steel, stainless steel, cast iron, non-ferrous metals, superalloys, and titanium
• Regular spiral flute with tapered web for efficient chip evacuation
• Straight-cylindrical shank fits standard drill chucks without modification
• Meets ANSI standards and NAS 907 specification

Compatibility

Designed as a general-purpose OEM-style jobber drill bit compatible with any standard drill chuck accepting a 7/32 inch straight-cylindrical shank. Fits within the R10B-R15B-R18B series.

Installation Notes

This bit is installed by machinists and trade professionals using handheld or bench-mounted drills with a compatible chuck. Secure the workpiece before drilling to prevent rotation. Use appropriate cutting fluid when drilling stainless steel, superalloys, or titanium to extend bit life and improve hole finish. Inspect the cutting edge before each use and replace the bit if chipping or dulling is observed.