Precision Twist Drill 5999723 Taper Length Drill Bit

Product Description

The PRECISION TWIST DRILL 5999723 is a taper length drill bit designed for general-purpose drilling across a wide range of materials. Manufactured from high speed steel with a bright/uncoated finish, it measures 0.1610 inches in diameter — equivalent to Wire Size 20 — with a 118-degree standard point angle and a web-thinned, tapered web configuration. The spiral flute design and right-hand cut promote efficient chip evacuation. At 5.75 inches overall length with a 3.375-inch flute length, this bit offers the extended reach characteristic of taper length geometry while maintaining a straight shank for standard chuck compatibility. ANSI standards compliance ensures dimensional consistency for precision applications.

This drill bit is suited for metalworking and fabrication environments where a general-purpose taper length bit is required. The 0.1610-inch diameter is commonly used in machining, maintenance, and repair operations across industrial, commercial, and trade settings. Compatible materials include alloy steel, aluminum, aluminum alloy, brass, bronze, carbon steel, cast iron, copper, graphite, hardened steel, high strength bronze, magnesium, magnesium alloy, malleable iron, nickel, nickel alloy, reinforced plastic materials, stainless steel, and cermet. The Series R52 designation identifies it within the Precision Twist Drill catalog for cross-reference and replacement sourcing.

Key Features

• 0.1610-inch diameter with Wire Size 20 designation for standard cross-referencing
• High speed steel construction provides hardness and wear resistance across a broad material range
• 118-degree standard point angle for general-purpose entry and hole quality
• Web-thinned, tapered web configuration reduces thrust and improves penetration
• Regular spiral flute at 6xD flute-to-diameter ratio supports chip clearance in taper length applications
• Straight shank fits standard drill chucks without adapters
• ANSI-compliant dimensions for consistent fitment and interchangeability

Compatibility

Designed as a general-purpose taper length drill bit compatible with any standard drill chuck or drill press that accepts a straight shank at 0.1610 inches diameter. Material compatibility includes alloy steel, aluminum, brass, bronze, carbon steel, cast iron, copper, graphite, hardened steel, magnesium, malleable iron, nickel alloys, reinforced plastics, and stainless steel.

Installation Notes

This bit is installed by machinists, maintenance technicians, and trade professionals using a standard drill press, mill, or hand drill with a compatible chuck. Secure the straight shank firmly in the chuck before operation and verify the workpiece is properly clamped or fixtured. Appropriate cutting fluid or coolant is recommended when drilling ferrous metals or hardened materials to extend tool life, even though this bit does not have internal coolant-through capability. Follow all applicable shop safety practices and equipment manufacturer guidelines during use.