Precision Twist Drill 5998008 No. 47 5/64 Hss Drill Bit

Product Description

The PRECISION TWIST DRILL 5998008 is a wire gauge No. 47 jobber length drill bit manufactured from high speed steel with a bright uncoated finish. At 5/64 inch (0.0785 inch decimal) in diameter, it delivers a 118-degree standard point angle suited for general-purpose drilling across a wide range of materials. The straight-cylindrical shank and regular spiral flute geometry promote consistent chip evacuation and accurate hole entry. With an overall length of 2 inches and a 1-inch flute length, this bit fits standard three-jaw drill chucks and is sized for precision work in tight clearances. Licensed trades and maintenance professionals specify this size for small-diameter through-holes in ferrous and non-ferrous applications.

This bit is designed for drilling in steel, cast iron, non-ferrous metals, superalloys, and titanium under general-purpose conditions. The 2-flute, right-hand-cut configuration works with standard drill presses, hand drills, and CNC drilling equipment. The tapered web with web thinning reduces thrust load at entry, making it practical for production runs and field service work alike. It is sized within the 0.0500 to 0.1000 inch diameter range and is suited for residential and light commercial mechanical, electrical, and plumbing rough-in tasks where small pilot or clearance holes are required.

Key Features

• Wire gauge No. 47 size — 5/64 inch (0.0785 inch decimal) diameter for precise hole sizing
• 118-degree standard point angle for general-purpose entry into steel and non-ferrous metals
• High speed steel construction for durability across a broad range of workpiece materials
• Bright uncoated finish — compatible with cutting fluids and dry drilling operations
• Tapered web with web thinning reduces drilling thrust and improves bit life
• Straight-cylindrical shank fits standard drill chucks without adapters
• Right-hand spiral flute promotes efficient chip removal during through-hole drilling

Compatibility

Designed as an OEM-style general-purpose jobber length drill bit in Series R10H-R18H, compatible with standard three-jaw drill chucks accepting a 5/64 inch straight shank. Conforms to ANSI specification standards for jobber length twist drills.

Installation Notes

Installation of this bit requires securing it fully into a properly sized drill chuck before operation. Always power down and lock out any drill press or powered equipment before changing bits. Use appropriate cutting fluid or lubricant when drilling ferrous metals to extend bit life and maintain hole quality. Verify chuck capacity and bit runout before beginning precision or production drilling.