Precision Twist Drill 6000231 Taper Length Drill Bit 5/64

Product Description

The PRECISION TWIST DRILL 6000231 is a taper length drill bit built for general-purpose drilling across a wide range of materials. Manufactured from high speed steel (HSS) with a bright/uncoated finish, it features a 118-degree standard point angle and a spiral flute with a right-hand cut. The straight shank measures 0.0781 inches in diameter, matching the 5/64 inch nominal drill size. With a 2-inch flute length and 3.75 inches overall length, this bit is engineered to reach depths beyond what jobber-length bits allow. The tapered web configuration and web-thinned geometry reduce thrust and improve chip evacuation on deeper holes. Licensed tradespeople and machining professionals use this bit for production and maintenance drilling tasks.

This drill bit is suited for drilling into alloy steel, carbon steel, stainless steel, cast iron, malleable iron, hardened steel, aluminum, aluminum alloy, brass, bronze, high strength bronze, copper, magnesium, magnesium alloy, nickel, nickel alloy, cermet, graphite, and reinforced plastic materials. The taper length format makes it appropriate for applications requiring extra reach without the flex of longer aircraft-extension bits. It is commonly used in metalworking shops, maintenance facilities, and fabrication environments where a variety of base metals are encountered.

Key Features

• 5/64 inch (0.0781 inches) diameter with matching straight shank for standard chuck compatibility
• 118-degree standard point angle with web-thinned, tapered web for reduced entry thrust
• High speed steel construction for durability across ferrous and non-ferrous materials
• 2-inch flute length with 6xD flute-to-diameter ratio for deeper reach than jobber-length bits
• Right-hand spiral flute promotes chip clearing during through-hole drilling
• Bright/uncoated finish — no coating buildup to affect dimensional accuracy on small diameters
• ANSI standard compliant, Series R51

Compatibility

Designed as a general-purpose taper length drill bit compatible with standard three-jaw drill chucks and collet systems accepting a 0.0781-inch straight shank. Suitable for use in drill presses, milling machines, and hand-held electric drills. Material applications include alloy steel, aluminum, brass, bronze, carbon steel, cast iron, copper, stainless steel, nickel alloys, and reinforced plastics as specified by the manufacturer.

Installation Notes

Installation and operation should be performed by qualified machinists or tradespeople familiar with rotating cutting tools. Secure the shank fully in the chuck and verify concentricity before beginning a cut. Always power down the machine and allow the spindle to come to a complete stop before changing bits or clearing chips. Follow applicable workplace safety standards and machine manufacturer guidelines for speed and feed selection when drilling the listed materials.