Precision Twist Drill 5999761 Taper Length Drill Bit

Product Description

The PRECISION TWIST DRILL 5999761 is a taper length drill bit designed for general-purpose drilling across a wide range of materials. It measures 0.75 inches in diameter with an overall length of 9.75 inches and a flute length of 5.875 inches. The bit is manufactured from high speed steel (HSS) with a bright/uncoated finish and features a standard 118-degree split point with web thinning for improved centering and reduced thrust. The straight shank accepts standard drill chucks, and the right-hand spiral flute efficiently evacuates chips during through-hole and deep drilling operations. This is a professional-grade cutting tool suited for installation by machinists, pipefitters, HVAC fabricators, and maintenance technicians.

The 5999761 taper length bit is built for applications where a longer reach is needed beyond a jobber-length drill. The 6xD flute-to-diameter ratio makes it well suited for drilling deeper holes in structural components, pipe flanges, sheet metal assemblies, and mechanical housings. Compatible materials include alloy steel, aluminum, aluminum alloy, brass, bronze, carbon steel, cast iron, cermet, copper, graphite, hardened steel, high strength bronze, magnesium, magnesium alloy, malleable iron, nickel, nickel alloy, reinforced plastic materials, and stainless steel. It is a solid choice for job-site fabrication, shop work, and field service applications.

Key Features

• High speed steel construction for durability across ferrous and non-ferrous materials
• 118-degree standard point angle with web thinning for reduced entry thrust and improved centering
• Taper length body at 9.75 inches overall for extended reach compared to standard jobber bits
• Bright/uncoated finish suitable for general-purpose use without coating-related compatibility concerns
• Right-hand spiral flute with tapered web configuration for efficient chip evacuation
• Straight shank at 0.75 inches diameter fits standard drill chucks without adapters

Compatibility

Compatible material applications include alloy steel, aluminum, aluminum alloy, brass, bronze, carbon steel, cast iron, cermet, copper, graphite, hardened steel, high strength bronze, magnesium, magnesium alloy, malleable iron, nickel, nickel alloy, reinforced plastic materials, and stainless steel. Meets ANSI standards. Part of the PRECISION TWIST DRILL Series R51.

Installation Notes

This bit is installed by machinists, pipefitters, and trade technicians using standard drill presses, magnetic drills, or hand-held drilling equipment with a compatible 0.75-inch chuck. Secure the workpiece firmly before drilling and use appropriate cutting fluid when working hardened steel or stainless steel to extend bit life. Coolant-through is not supported on this bit. Follow applicable shop safety standards and wear appropriate eye protection during use.