Precision Twist Drill 5999148 Jobber Drill Bit 64 Hss

Product Description

The PRECISION TWIST DRILL 5999148 is a jobber-length drill bit designed for general-purpose drilling in a wide range of materials. Wire size 64, it measures 0.0360 inches in diameter with an overall length of 1.5 inches. The bit is manufactured from high-speed steel with a bright uncoated finish and features a 118-degree standard point angle, making it well suited for production and maintenance drilling operations. A tapered web with web thinning reduces thrust and improves chip evacuation. This bit is installed by machinists, maintenance technicians, and metalworking professionals using standard drill presses, lathes, or handheld power drills.

This bit is intended for drilling steel, stainless steel, cast iron, non-ferrous metals, superalloys, titanium, and other hard materials. The straight-cylindrical shank accepts standard three-jaw chucks without modification. The 5/8-inch flute length supports a maximum drilling depth of 0.625 inches, making this bit appropriate for through-holes and shallow blind holes in thin stock, sheet metal, and precision components. It is part of the R18P series and conforms to ANSI standards.

Key Features

• Wire size 64 diameter: 0.0360 inches straight-cylindrical shank for standard chuck compatibility
• 118-degree standard point angle with web thinning for reduced entry thrust
• High-speed steel construction for durability across ferrous and non-ferrous workpieces
• Bright uncoated finish suitable for use with or without cutting fluid
• Regular spiral flute with 17xD flute-to-diameter ratio for consistent chip removal
• Right-hand cut, two-flute design conforms to ANSI specification

Compatibility

Designed as a general-purpose jobber-length drill bit compatible with any three-jaw chuck or collet system accepting a 0.0360-inch straight-cylindrical shank, including standard drill presses, CNC machines, and handheld power drills.

Installation Notes

Installation is performed by machinists or maintenance technicians familiar with drilling operations. Secure the shank fully in the chuck before operating to prevent runout. Power down and de-energize all equipment before changing bits. Use appropriate cutting fluid when drilling stainless steel, superalloys, or titanium to extend tool life and maintain dimensional accuracy.