Precision Twist Drill 5999532 Reduced Shank Drill Bit

Product Description

The PRECISION TWIST DRILL 5999532 is a reduced shank twist drill bit designed for general-purpose drilling in metal fabrication, maintenance, and trade applications. The bit measures 63/64 inch (0.9844 inch decimal) in diameter with a 1/2 inch straight-cylindrical shank, allowing it to be chucked in standard 1/2 inch drill presses and handheld drill chucks without a larger-capacity chuck. Constructed from high speed steel with a bright uncoated finish, it features a 118-degree standard point angle and right-hand spiral flute geometry suited for cutting ferrous metals and a range of non-ferrous materials. Machinists, pipefitters, ironworkers, and general maintenance mechanics are the typical installers of this tool.

This drill bit is built for use in drill presses, milling machines, and heavy-duty handheld drills across residential and commercial job sites, machine shops, and industrial maintenance settings. The reduced shank design makes a near-1-inch diameter bit accessible to equipment with a 1/2 inch chuck capacity. It is suited for drilling ferrous metals, aluminum, copper, magnesium, nickel, titanium, and synthetic materials. The Series R56 designation places it within a recognized line of general-purpose jobber and reduced-shank tooling.

Key Features

• 63/64 inch (0.9844 inch decimal) drill diameter with 1/2 inch reduced shank for standard chuck compatibility
• 118-degree standard point angle for general-purpose entry into ferrous and non-ferrous materials
• High speed steel construction provides hardness and heat resistance for metal drilling
• 3-inch flute length with regular spiral geometry supports chip evacuation during drilling
• 6-inch overall length balances reach and rigidity in press and handheld applications
• Right-hand cut, bright uncoated finish — no coolant required per specification

Compatibility

Designed as a general-purpose reduced shank drill bit compatible with 1/2 inch chucks on drill presses, handheld drills, and milling machine setups; meets ANSI standards for straight-shank twist drill geometry.

Installation Notes

Installation of this bit should be performed by a qualified machinist or tradesperson familiar with rotating cutting tools. Ensure the drill press or handheld drill is powered off and the chuck is fully secured around the shank before operation. Always wear appropriate eye protection and secure the workpiece firmly before drilling. Follow applicable ANSI safety standards and machine manufacturer guidelines for speed selection based on material and bit diameter.