Precision Twist Drill 5999541 Taper Length Drill Bit

Product Description

The PRECISION TWIST DRILL 5999541 is a taper length drill bit designed for general-purpose drilling across a wide range of materials. Ground from high speed steel with a bright, uncoated finish, this bit features a 118-degree standard point angle and a right-hand spiral flute for consistent chip evacuation. The wire gauge size 75 decimal diameter of 0.0210 inches makes it suited for precision small-bore work. Overall length is 1.5 inches with a flute length of 0.3125 inches at a 6xD flute-to-diameter ratio. Machinists, tool-and-die workers, and maintenance technicians performing close-tolerance drilling operations are the primary users of this bit.

This bit is built for general-purpose shop and field drilling. It performs in both hand-held and machine-mounted applications including drill presses, CNC equipment, and manual mills. The straight shank and tapered web configuration allow it to seat directly in standard chucks sized for small-diameter tooling. Compatible materials include 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. The ANSI standard construction ensures dimensional consistency across the Series R52 lineup.

Key Features

• High speed steel construction for durability across a broad material range
• 118-degree standard point angle with web-thinned, tapered web for reduced thrust
• Right-hand spiral flute with regular helix for reliable chip clearance
• Bright, uncoated finish suitable for general-purpose use without added coating cost
• Straight shank at 0.0210 inches diameter for direct chuck mounting
• ANSI-compliant Series R52 construction for consistent dimensional tolerances

Compatibility

Designed for use in standard drill chucks and collets accepting straight-shank tooling at 0.0210 inches shank diameter. Suitable 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 per the Series R52 general-purpose rating.

Installation Notes

This bit is installed by machinists or maintenance technicians in standard drill chucks or collet systems. Verify the chuck or collet is rated for the 0.0210-inch shank diameter before seating the bit. Power down and de-energize all equipment before changing tooling. At this diameter, appropriate low-thrust feed rates and cutting fluid application are recommended practices to minimize deflection and bit breakage.