Precision Twist Drill 5996292 Taper Length Drill Bit

Product Description

The PRECISION TWIST DRILL 5996292 is a taper length cobalt drill bit designed for demanding metal drilling applications. It measures 39/64 inch (0.6094 inches) in diameter with an overall length of 8.75 inches and a flute length of 4.875 inches, yielding a 6xD flute-to-diameter ratio suited for deeper reach applications. The 135-degree notched point promotes self-centering entry and reduces walking on hard materials. Cobalt construction provides heat resistance and edge retention well beyond standard high-speed steel bits. This bit is installed by machinists, maintenance technicians, fabricators, and trade professionals working in production or field environments where tool life under load is a priority.

This drill bit is built for cutting a wide range of materials including alloy steel, stainless steel, hardened steel, carbon steel, cast iron, malleable iron, nickel and nickel alloys, brass, bronze, high strength bronze, copper, aluminum, aluminum alloy, magnesium, magnesium alloy, cermet, graphite, and reinforced plastic materials. The taper length body gives added rigidity compared to jobber-length bits, making it well suited for through-hole drilling in plate stock, structural members, and heavy-wall tubing where a standard-length bit lacks the reach or stiffness needed.

Key Features

• Cobalt tool material delivers elevated heat resistance and hardness for cutting tough ferrous and non-ferrous metals
• 135-degree notched point provides self-centering action and reduces thrust force on entry
• Web-thinned, tapered web configuration lowers cutting resistance and improves chip evacuation
• Spiral (regular helix) flute promotes consistent chip flow and reduces clogging during deep cuts
• Straight shank accepts standard drill chucks without requiring a specialized holder
• Right-hand cut, ANSI-standard geometry for compatibility with conventional drilling equipment
• Heavy-duty grade construction rated for high-performance cutting in production and maintenance applications

Compatibility

Designed as an OEM-style replacement or direct-use taper length drill bit for applications requiring a 39/64 inch straight-shank cobalt bit conforming to ANSI standards. Series M51CO.

Installation Notes

This bit is installed by machinists and trade technicians using standard drill presses, magnetic drills, or hand-held power drills with a chuck sized to accept a 0.6094-inch straight shank. Secure the workpiece firmly before drilling and confirm the chuck is fully tightened to prevent slippage and bit damage. Use appropriate cutting fluid for ferrous materials to extend tool life and maintain dimensional accuracy. Inspect the cutting edges before each use and replace the bit if chipping or excessive wear is observed.