Precision Twist Drill 6000331 Taper Length Drill Bit

Product Description

The PRECISION TWIST DRILL 6000331 is a taper length drill bit designed for general-purpose drilling across a wide range of metals and materials. Built from high speed steel with a bright/uncoated finish, it features a 0.3680-inch diameter, a standard 118-degree split point, and a right-hand spiral flute configuration. The straight shank and web-thinned, tapered web geometry reduce entry resistance and improve chip clearance. At 6.75 inches overall length with a 4.25-inch flute, this bit provides extended reach in applications where standard-length bits fall short. It belongs to the Series R55 lineup and conforms to ANSI standards. Journeyman machinists, pipefitters, HVAC fabricators, and industrial maintenance techs are the primary users.

This drill bit is suited for production and maintenance drilling in residential and commercial trade environments. Its general-purpose grade and broad material compatibility make it a practical choice for shops and field technicians working with structural metals, piping materials, and non-ferrous stock. The 6xD flute-to-diameter ratio provides chip evacuation headroom in deeper hole applications. Right-hand cut operation is compatible with standard drill presses, hand drills, and magnetic base drills used across the trades.

Key Features

• 0.3680-inch (Letter U) diameter for precise sizing in standard drill charts
• High speed steel construction for durability across ferrous and non-ferrous materials
• 118-degree standard point angle with web-thinned geometry for reduced thrust and cleaner entry
• 4.25-inch flute length with 6xD ratio supports effective chip removal in deeper holes
• Bright/uncoated finish — no coating buildup concerns, easy to inspect for wear
• Straight shank fits standard drill chucks; no special collet required
• Conforms to ANSI standards

Compatibility

Compatible material applications include alloy steel, aluminum, aluminum alloy, brass, bronze, carbon steel, cast iron, cermet, copper, graphite, hardened steel, high strength bronze, magnesium, magnesium alloy, malleable iron, nickel, nickel alloy, reinforced plastic materials, and stainless steel.

Installation Notes

This bit is installed by machinists, maintenance technicians, pipefitters, and trade professionals using standard three-jaw drill chucks on corded drills, drill presses, or magnetic base units. Secure the straight shank fully in the chuck before operation and verify chuck key removal before energizing the tool. Match spindle speed to the material being drilled — harder materials require lower RPM. Inspect the cutting edges for wear before each use and replace the bit if the point shows chipping or excessive dullness.