Precision Twist Drill 5999895 Reduced Shank Drill Bit

Product Description

The PRECISION TWIST DRILL 5999895 is a reduced shank twist drill bit designed for general-purpose hole making in ferrous metals, aluminum, copper, and a range of other materials. The bit measures 1-3/16 inches (1.1875 inches decimal) in cutting diameter with a 1/2-inch straight-cylindrical shank, allowing it to chuck into standard 1/2-inch capacity drill chucks even at a larger cutting diameter. The 118-degree standard point angle suits most production and maintenance drilling applications. Overall length is 6 inches with a 3-inch spiral flute. Constructed from high speed steel with a bright, uncoated finish, this bit is well suited for machinists, pipefitters, and general trade technicians who need a reliable workhorse drill bit without a specialty coating.

This drill bit is built for general-purpose use across ferrous metal fabrication, sheet metal work, HVAC rough-in, plumbing, and electrical trade applications where holes larger than standard jobber bits allow are required. The reduced shank design makes it practical for use in machines and hand drills limited to 1/2-inch chuck capacity. Compatible workpiece materials include ferrous metals as the primary target, along with aluminum, copper, magnesium, nickel, titanium, synthetic materials, and cermet. It is sold individually as a single-piece unit.

Key Features

• 1-3/16 inch cutting diameter with a reduced 1/2-inch shank for use in standard 1/2-inch drill chucks
• 118-degree standard point angle for general-purpose drilling in a wide range of materials
• High speed steel construction provides durability across ferrous and non-ferrous workpieces
• 3-inch spiral flute length with regular spiral for effective chip evacuation
• Bright, uncoated finish — no coating degradation risk; can be resharpened with standard equipment
• Right-hand cutting direction; Series R56; meets ANSI standards

Compatibility

Designed for use with any drill press, magnetic drill, or hand drill equipped with a 1/2-inch capacity chuck. Suitable for drilling ferrous metals, aluminum, copper, magnesium, nickel, titanium, cermet, and synthetic materials in general-purpose applications.

Installation Notes

Secure the bit firmly in a 1/2-inch chuck and verify runout before drilling. Always clamp the workpiece — do not hand-hold material when drilling at this diameter. Use cutting fluid or a suitable coolant on ferrous metals to extend bit life, as this bit is specified without an internal coolant channel. Power down and lock out the drill press or tool before changing bits or adjusting chuck position.