Precision Twist Drill 5999706 Taper Length Drill Bit

Product Description

The PRECISION TWIST DRILL 5999706 is a taper length drill bit designed for general-purpose drilling across a wide range of materials. Built from high speed steel (HSS) with a bright/uncoated finish, it measures 0.1730 inches in diameter — corresponding to Wire Size 17 — and features a 118-degree standard point angle. The spiral flute geometry and web-thinned, tapered web design promote efficient chip evacuation and reduce thrust during entry. The straight shank seats securely in standard drill chucks. At 5.75 inches overall length with a 3.375-inch flute, it provides greater reach than jobber-length bits for deeper-hole applications without requiring an extension.

This bit is suited for shop, field, and maintenance drilling tasks performed by machinists, pipefitters, HVAC technicians, electricians, and general tradespeople. The taper length format is commonly chosen when drilling through thicker stock, deep flanges, or structural members where a jobber-length bit falls short. The Series R52 designation places it within PRECISION TWIST DRILL's general-purpose HSS line, appropriate for production and maintenance environments alike.

Key Features

• 0.1730 inch diameter, Wire Size 17 — bright/uncoated HSS construction
• 118-degree standard point angle with web-thinned, tapered web for reduced entry thrust
• 3.375-inch spiral flute length at a 6xD flute-to-diameter ratio for deep-hole reach
• 5.75 inches overall length — taper length format extends reach beyond standard jobber bits
• Right-hand cut, straight shank — fits standard keyed and keyless drill chucks
• ANSI-standard geometry; no coolant-through feature required for general-purpose use

Compatibility

Rated for use in 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.

Installation Notes

Install in a drill press, hand drill, or magnetic drill with a chuck sized for a 0.1730-inch straight shank; confirm the shank is fully seated and the chuck key is removed before operation. Use cutting fluid or lubricant when drilling stainless steel, hardened steel, or non-ferrous alloys to extend tool life and improve finish quality. Secure the workpiece firmly before drilling to prevent walking at entry. Inspect the cutting edges for wear before each use — a dull HSS bit generates excess heat and can work-harden stainless or high-strength materials.