Precision Twist Drill 5999702 Taper Length Drill Bit R51

Product Description

The PRECISION TWIST DRILL 5999702 is a taper length, straight-shank drill bit designed for general-purpose drilling in a wide range of metallic and non-metallic 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 15/32 inch (0.4688 inches) in diameter with a 4-3/4-inch spiral flute length and a 7-1/2-inch overall length. The right-hand spiral flute geometry makes it a direct fit for standard drill presses, lathes, and hand-held drilling equipment used by machinists, maintenance technicians, and trade professionals working with ferrous and non-ferrous stock.

The 5999702 is suited for production and maintenance drilling in shop and field environments. Its taper length body provides extra reach compared to jobber-length bits, making it useful when drilling through thicker workpieces or in applications where clearance depth is required. The Series R51 designation identifies it as a general-purpose line conforming to ANSI standards, appropriate for residential and commercial mechanical, HVAC, electrical, and plumbing rough-in work where metal drilling is part of the install process.

Key Features

• High speed steel construction handles alloy steel, stainless steel, cast iron, aluminum, brass, bronze, copper, and reinforced plastics
• 118-degree standard point angle with web-thinned geometry reduces entry thrust and centers the bit reliably
• Taper length body at 7-1/2 inches overall provides extended reach beyond standard jobber-length bits
• Bright/uncoated finish allows visual wear inspection during service
• Right-hand, regular spiral flute with 6xD flute-to-diameter ratio promotes consistent chip clearing
• Straight shank compatible with standard drill chucks — no special tooling required

Compatibility

Designed as a general-purpose taper length drill bit conforming to ANSI standards; compatible with any standard drill chuck that accepts a 0.4687-inch straight shank across drill presses, lathes, and portable drilling equipment.

Installation Notes

Installation and use of this bit should be performed by machinists or trade professionals familiar with drilling speeds and feeds for the target material. Secure the workpiece and verify chuck tightness before operation. Follow applicable shop safety practices and wear appropriate eye protection. Do not exceed the rated capacity of the drilling equipment being used.