Precision Twist Drill 6000939 Taper Length Drill Bit

Product Description

The PRECISION TWIST DRILL 6000939 is a taper length drill bit designed for general-purpose drilling in a wide range of materials across industrial and trade applications. Built from high speed steel (HSS) with a bright, uncoated finish, this bit features a 118-degree standard point angle and a web-thinned, tapered web configuration for reduced thrust and cleaner entry. The straight shank measures 0.5118 inches in diameter, matching the drill diameter, and the overall length is 8-1/16 inches. Right-hand spiral flutes with a 6xD flute-to-diameter ratio support efficient chip evacuation during deeper drilling operations. Manufactured to DIN 340 specification, this is a reliable general-purpose drill for shop, field, and production use.

The 6000939 is suited for drilling 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 body provides additional reach compared to jobber-length bits, making it appropriate for deeper hole applications in fabrication, maintenance, and mechanical contracting work. It is sold individually and fits standard drill chucks that accept a 0.5118-inch straight shank.

Key Features

• High speed steel construction for durability across a broad range of workpiece materials
• 118-degree standard point angle with web-thinned, tapered web for reduced entry thrust
• Right-hand spiral flute, 6xD ratio for effective chip clearing in deeper cuts
• Taper length body at 8-1/16 inches overall for extended reach versus jobber-length bits
• Straight shank at 0.5118 inches diameter fits standard drill chucks without adapters
• Manufactured to DIN 340 specification for consistent dimensional accuracy

Compatibility

Designed as a general-purpose taper length drill bit compatible with any drill press, magnetic drill, or hand drill equipped with a chuck sized to accept a 0.5118-inch straight shank. Suitable for use across the material applications listed in the product description.

Installation Notes

Installation is performed by machinists, millwrights, pipefitters, and mechanical contractors using drill presses, magnetic base drills, or heavy-duty hand drills. Secure the straight shank fully in the chuck before operation and verify chuck key is removed before starting the machine. Use appropriate cutting fluid or coolant when drilling ferrous metals to extend tool life, noting this bit does not support coolant-through delivery. Follow applicable shop safety standards and wear eye protection during all drilling operations.