Precision Twist Drill 5996565 Taper Length Drill Bit

Product Description

The PRECISION TWIST DRILL 5996565 is a cobalt taper length drill bit designed for demanding metal-cutting applications. It measures 0.0625 inches (1/16 inch) in diameter with a 3-inch overall length and a 1.75-inch flute length, giving it a 6xD flute-to-diameter ratio suited for deeper drilling operations. The 135-degree split point promotes self-centering entry and reduces the need for a center punch on most materials. The right-hand spiral flute with web-thinned, tapered web geometry improves chip evacuation and reduces cutting torque. Machinists, fabricators, and maintenance technicians working in production or MRO environments are the primary users of this bit.

This drill bit is built for high-performance cutting across a broad range of materials. The cobalt tool material provides heat resistance and edge retention when working in alloy steel, stainless steel, cast iron, hardened steel, nickel alloys, high-strength bronze, and non-ferrous metals including aluminum, brass, copper, and magnesium alloys. It is also rated for use in reinforced plastics and cermet. The straight shank fits standard drill chucks without adapters, making it compatible with bench drills, drill presses, and hand-held power drills in both shop and field settings.

Key Features

• Cobalt tool material for elevated heat resistance and extended tool life in hard and abrasive materials
• 135-degree split point for self-centering entry and reduced feed force
• Web-thinned tapered web construction improves chip flow and reduces cutting resistance
• 1.75-inch flute length with 6xD ratio supports deeper hole applications
• Right-hand cut, regular spiral flute for efficient chip evacuation
• Straight shank fits standard drill chucks with no adapter required
• Conforms to ANSI standards; heavy-duty grade construction

Compatibility

Rated for use in 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 as specified by the manufacturer.

Installation Notes

Install the straight shank securely in a drill chuck, ensuring the chuck key is tightened evenly before use. Use appropriate cutting fluid or coolant for the workpiece material to extend tool life, particularly when drilling stainless steel or nickel alloys. Secure the workpiece firmly before drilling to prevent movement and maintain hole accuracy. This bit does not support coolant-through delivery; apply cutting fluid externally at the entry point.