Precision Twist Drill 5999622 Taper Length Drill Bit

Product Description

The PRECISION TWIST DRILL 5999622 is a taper length, straight-shank drill bit designed for general-purpose drilling across a wide range of materials. Built from high speed steel with a bright/uncoated finish, it features a 118-degree standard point angle and a web-thinned, tapered web configuration that reduces thrust and improves chip evacuation. The bit measures 0.1990 inches in diameter with a 6-inch overall length and a 3-5/8-inch spiral flute length, giving it extended reach compared to jobber-length equivalents. Right-hand cut with a regular spiral flute, this bit suits machinists, fabricators, and maintenance technicians working on production or field drilling tasks.

The 5999622 is suited for use on drill presses, lathes, and hand-held electric drills in both shop and field environments. Its taper length profile provides additional reach for deep-hole applications where a standard jobber bit falls short. The Series R52 designation places it within PRECISION TWIST DRILL's general-purpose HSS line, making it a practical choice for metal fabrication shops, mechanical contractors, and industrial maintenance operations working with a broad range of workpiece materials.

Key Features

• High speed steel construction for durability across a wide material range
• 118-degree standard point angle for general-purpose drilling
• Web-thinned tapered web reduces cutting thrust and improves chip flow
• Taper length body at 6 inches OAL provides extended reach over jobber-length bits
• Right-hand cut with regular spiral flute for consistent chip evacuation
• Bright/uncoated finish; ANSI standard compliant; Series R52

Compatibility

Compatible with 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 workpieces. Fits any standard straight-shank chuck sized for a 0.1990-inch shank diameter.

Installation Notes

Installation is performed by machinists or maintenance technicians using a standard keyed or keyless chuck rated for the 0.1990-inch straight shank diameter. Secure the bit fully in the chuck before operation and confirm the workpiece is clamped or fixtured to prevent movement. Use appropriate cutting fluid or coolant for the workpiece material to extend tool life, noting this bit does not support coolant-through delivery. Follow applicable shop safety standards and machine guarding requirements during use.