Precision Twist Drill 6000518 Taper Length Drill Bit

Product Description

The PRECISION TWIST DRILL 6000518 is a taper length drill bit designed for general-purpose drilling across a wide range of metals and materials. It measures 0.4016 inches in diameter with an overall length of 7.25 inches and a flute length of 4.75 inches. Constructed from high speed steel with a bright uncoated finish, this bit uses a standard 118-degree point angle and a web-thinned, tapered web configuration for efficient chip evacuation and reduced entry force. The straight shank measures 0.4016 inches in diameter. It is installed by machinists and maintenance trades working with drill presses, CNC machines, and manual lathes.

This taper length bit is suited for production and maintenance drilling in shop and field environments. The extended flute length relative to diameter (6xD ratio) allows for deeper hole entry than a jobber-length bit while maintaining rigidity. Appropriate for drilling 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 materials, and stainless steel. Right-hand spiral flutes promote consistent chip removal during through-hole and blind-hole operations.

Key Features

• 0.4016-inch diameter with matching straight shank for direct chuck mounting
• 118-degree standard point angle with web-thinned, tapered web for reduced thrust
• High speed steel construction rated for general-purpose use across ferrous and non-ferrous materials
• 4.75-inch flute length with 6xD flute-to-diameter ratio for deeper reach than jobber bits
• Bright uncoated finish allows easy inspection for wear and regrinding
• Right-hand cut with regular spiral flutes for efficient chip evacuation
• Conforms to DIN 340 specification

Compatibility

Designed as an OEM-style replacement or direct-fit bit for any drill press, CNC drilling machine, or manual lathe equipped with a chuck accepting a 0.4016-inch straight shank. Part of the PRECISION TWIST DRILL Series 5ATL taper length line.

Installation Notes

Installation is performed by machinists or maintenance technicians. Secure the straight shank fully in the chuck and verify runout before drilling. Ensure the workpiece is clamped securely before starting the spindle. Use appropriate cutting fluid for ferrous materials to extend bit life and maintain surface finish.