Precision Twist Drill 6000336 Taper Length Drill Bit W

Product Description

The PRECISION TWIST DRILL 6000336 is a taper length, high-speed steel drill bit sized to Letter W (0.386 inches decimal equivalent) with a 118-degree standard point angle. Designed for general-purpose drilling in a wide range of materials, this bit features a spiral flute with a web-thinned, tapered web configuration that helps reduce cutting resistance and improve chip evacuation. The straight shank is 0.386 inches in diameter, compatible with standard drill chucks. Right-hand cut geometry and a bright, uncoated finish make this a reliable production and maintenance drill for machine shops, fabrication facilities, and trade contractors who need consistent performance across varied stock.

This drill bit is suited for use in drill presses, lathes, and handheld power tools where taper length reach is required beyond what a jobber-length bit provides. The 4.375-inch flute length and 7-inch overall length give added depth capacity for through-hole work in thicker stock. Conforming to ANSI standards, the R55 series is a general-purpose drill appropriate for production environments and field service work across metalworking and mechanical trades.

Key Features

• Letter W size: 0.386 inches decimal equivalent for precise bore sizing
• 118-degree standard point angle with web-thinned tapered web for reduced thrust and easier starting
• High-speed steel construction, bright/uncoated finish suitable for general-purpose use
• Taper length body: 4.375-inch flute length, 7-inch overall length for extended reach
• Right-hand cut, spiral flute with 6xD flute-to-diameter ratio for efficient chip clearing
• Straight shank, non-threaded, fits standard drill chucks
• ANSI standard compliant, R55 series general-purpose grade

Compatibility

Compatible with a broad range of workpiece materials including alloy steel, aluminum, aluminum alloy, brass, bronze, carbon steel, cast iron, copper, graphite, hardened steel, high-strength bronze, magnesium, magnesium alloy, malleable iron, nickel, nickel alloy, reinforced plastic, stainless steel, and steel. Fits standard straight-shank drill chucks accepting a 0.386-inch shank diameter.

Installation Notes

Installation and use should be performed by qualified machinists or trade professionals familiar with metalworking drill operation. Power down and de-energize the drill press, lathe, or power tool before securing or removing the bit from the chuck. Ensure the shank is fully seated and the chuck is tightened before operating. Use appropriate cutting fluid or coolant for the workpiece material to extend tool life, noting this bit does not support coolant-through delivery.