Precision Twist Drill 5998524 Jobber Drill Bit 23/64 in

Product Description

The PRECISION TWIST DRILL 5998524 is a jobber-length drill bit ground from high speed steel and finished with a bright, uncoated surface. It measures 23/64 inches (0.3594 inches) in diameter with an overall length of 4.875 inches and a 3.5-inch spiral flute. The 118-degree standard point angle suits a wide range of general-purpose drilling applications across steel, cast iron, non-ferrous metals, and superalloys. A two-flute, right-hand-cut spiral design evacuates chips efficiently, and the tapered web with web-thinning reduces thrust during entry. Licensed HVAC technicians, electricians, and plumbers reach for this type of bit when boring pilot holes, clearance holes, and mounting holes in sheet metal brackets, conduit hangers, and mechanical room structures.

This bit fits general-purpose drilling in residential and commercial mechanical installations. It is suited for field technicians who need a reliable jobber-length bit for drilling into steel framing, cast iron flanges, non-ferrous hardware, and superalloy fastener points. The straight-cylindrical shank seats in standard three-jaw chucks on corded drills and drill presses. The Series R10H-R18H designation places this bit in PRECISION TWIST DRILL's general-purpose jobber lineup, built to ANSI standards for consistent geometry and interchangeability on the job site.

Key Features

• 23/64 inch (0.3594 inches) diameter with a matching straight-cylindrical shank for secure chuck engagement
• 118-degree standard point angle with web-thinning for reduced entry thrust
• High speed steel construction rated for steel, cast iron, non-ferrous metals, and superalloys and titanium
• Right-hand, regular-spiral, two-flute design promotes efficient chip evacuation
• Bright uncoated finish — no coating to chip or peel during regrinding
• Built to ANSI standards, Series R10H-R18H

Compatibility

Designed as an OEM-style general-purpose jobber drill bit compatible with any standard three-jaw chuck accepting a 23/64 inch straight-cylindrical shank. Rated for use in steel, cast iron, non-ferrous metal, and superalloys and titanium workpieces per the manufacturer attribute data.

Installation Notes

Install in a three-jaw chuck and tighten fully before drilling. Always power down and de-energize or lock out equipment before drilling into live panels, conduit runs, or pressurized pipe assemblies. Use appropriate cutting fluid when drilling ferrous metals to extend bit life. Wear eye protection and secure the workpiece to prevent rotation during drilling.