Precision Twist Drill 5999953 Reduced Shank Drill Bit

Product Description

The PRECISION TWIST DRILL 5999953 is a reduced shank twist drill bit designed for general-purpose drilling in metal fabrication, maintenance, and trade applications. It features a 17/32 inch (0.5312 inch) cutting diameter with a 1/2 inch straight-cylindrical shank, allowing it to fit standard 1/2 inch chucks without requiring a larger chuck capacity. Manufactured from high-speed steel with a bright uncoated finish, the bit carries a 118-degree standard point angle suited for drilling ferrous metals and a wide range of secondary materials. Overall length is 6 inches with a 3-inch flute length. Right-hand cut, Series R56.

This drill bit is built for general-purpose drilling tasks encountered in HVAC, plumbing, electrical, and mechanical trade work. The reduced shank design makes a 17/32 inch bit accessible through a standard 1/2 inch drill chuck, which is common on corded and cordless drill drivers used in the field. Suitable for drilling ferrous metals, aluminum, copper, nickel, titanium, magnesium, and synthetic materials, it covers the range of substrates tradespeople encounter in typical installation and rough-in work. The spiral flute geometry promotes chip evacuation during through-hole drilling.

Key Features

• Reduced shank design: 17/32 inch cutting diameter with 1/2 inch shank for standard chuck compatibility
• High-speed steel construction for durability in ferrous and non-ferrous metal drilling
• 118-degree standard point angle for general-purpose entry and centering
• Regular spiral flute with 3-inch flute length supports chip clearance and drilling depth up to 3 inches
• Bright uncoated finish; no coolant required for general use
• Right-hand cut; ANSI standards compliant

Compatibility

Designed as a general-purpose reduced shank drill bit compatible with standard 1/2 inch drill chucks. Rated for use in ferrous metals, aluminum, copper, magnesium, nickel, titanium, cermet, and synthetic materials per Series R56 application data.

Installation Notes

Install securely in a 1/2 inch keyed or keyless chuck before use. Power down or unplug the drill before changing bits. Use appropriate eye protection and secure the workpiece to prevent rotation during drilling. No coolant is required for general-purpose use, though light cutting fluid may extend bit life in harder ferrous materials.