Precision Twist Drill 6000134 Extra Length Drill Bit

Product Description

The PRECISION TWIST DRILL 6000134 is a 7/16-inch diameter extra length high-speed steel drill bit engineered for professionals who need extended reach without sacrificing rigidity. Part of the Series 860 line, this bit features an 8-inch overall length and a 6-inch spiral flute, making it well suited for deep-hole drilling operations where standard-length bits fall short. The 118-degree standard point angle and web-thinned, tapered web construction reduce thrust on entry and promote clean chip evacuation. Cutting direction is right hand with a regular spiral. Machinists, maintenance technicians, and fabricators working in manufacturing, HVAC, or mechanical contracting will find this bit reliable across a broad range of materials.

This bit is rated for use on a wide variety of primary and secondary workpiece materials including aluminum, magnesium, copper, nickel, titanium, stainless steel, malleable iron, nickel alloys, hardened steel, high-strength bronze, reinforced plastics, and synthetic materials. The uncoated bright finish is appropriate for general-purpose drilling where coatings are unnecessary or where re-sharpening is anticipated. The straight-cylindrical shank fits standard drill chucks on benchtop drill presses, magnetic base drills, and hand-held power drills. This bit meets ANSI standards for geometry and tolerances.

Key Features

• 7/16-inch diameter with 8-inch overall length for extended reach in deep-hole applications
• 6-inch spiral flute length promotes efficient chip evacuation during deep drilling
• 118-degree standard point angle with web-thinned, tapered web reduces entry thrust
• High-speed steel construction provides toughness and heat resistance across general-purpose materials
• Right-hand cutting, regular spiral, 2-flute design for balanced chip flow
• Straight-cylindrical shank at 7/16 inch diameter fits standard drill chucks without an adapter
• Meets ANSI specification standards for dimensional accuracy

Compatibility

Designed as a general-purpose extra length drill bit compatible with standard 7/16-inch capacity or larger drill chucks on drill presses, magnetic drills, and portable power drills. Suitable for use on aluminum, magnesium, copper, nickel, titanium, stainless steel, malleable iron, nickel alloys, hardened steel, high-strength bronze, reinforced plastics, and synthetic materials as listed by the manufacturer.

Installation Notes

Install and remove this bit only with the drill powered off and the chuck fully secured before operation. Machinists and maintenance technicians should confirm chuck capacity accommodates a 7/16-inch straight shank before use. Apply cutting fluid appropriate to the workpiece material to extend bit life and improve hole quality, particularly when drilling stainless steel or nickel alloys. Inspect the cutting edges for wear before each use and re-sharpen or replace when point geometry is degraded.