Precision Twist Drill 5999086 Jobber Drill Bit 48 Hss

Product Description

The PRECISION TWIST DRILL 5999086 is a jobber-length drill bit in wire gauge size 48, with a decimal diameter of 0.0760 inches. Made from high speed steel with a bright uncoated finish, this bit features a standard 118-degree split point and a right-hand spiral flute for efficient chip evacuation. The overall length is 2 inches, with a 1-inch flute length and a straight cylindrical shank of 0.0760 inches in diameter. It is designed for general-purpose drilling applications across a range of metal workpiece materials. Licensed trades and maintenance professionals rely on this bit for precision drilling in tight-tolerance work where consistent sizing matters.

This bit is suited for drilling steel, stainless steel, cast iron, non-ferrous metals, superalloys, titanium, and other hard materials. The 13xD flute-to-diameter ratio and tapered web configuration with web thinning make it well-suited for production and maintenance drilling in fabrication shops, mechanical contracting environments, and field service applications. It falls within the R10P-R15P-R18P series and conforms to ANSI standards. The single-piece packaging makes it appropriate for replacement stock or individual job use.

Key Features

• Wire gauge size 48, decimal diameter 0.0760 inches for precision sizing
• High speed steel construction handles steel, stainless steel, cast iron, non-ferrous metals, superalloys, and titanium
• 118-degree standard point angle with web thinning for reduced thrust and easier starting
• Right-hand cut with regular spiral flute for positive chip removal
• Straight cylindrical shank fits standard drill chucks without adapter
• ANSI-compliant jobber-length geometry for consistent drilling depth across applications

Compatibility

Designed as a general-purpose jobber-length replacement drill bit for use in standard 3-jaw drill chucks. Compatible with hand drills, drill presses, and CNC drilling equipment accepting a 0.0760-inch straight shank. Confirmed workpiece material compatibility includes steel, stainless steel, cast iron, non-ferrous metals, superalloys, and titanium per manufacturer specification.

Installation Notes

Installation is performed by machinists, fabricators, or maintenance technicians using a drill press, hand drill, or CNC equipment. Secure the shank fully in the chuck and verify concentricity before drilling. Coolant-through is not supported on this bit, so apply cutting fluid manually when drilling harder materials such as stainless steel or superalloys to extend tool life. Disconnect or de-energize equipment before changing bits.