Precision Twist Drill 5999246 Wire 54 Jobber Drill Bit

Product Description

The PRECISION TWIST DRILL 5999246 is a wire gauge size 54 jobber length drill bit manufactured from high speed steel with a steam oxide coating. Sized at 0.0550 inches in diameter, this bit is designed for general-purpose drilling in a wide range of workpiece materials. The 118-degree standard point angle suits most production and maintenance drilling tasks. A two-flute regular spiral design promotes efficient chip evacuation, and the web-thinned, tapered web construction reduces thrust at entry. Licensed machinists, tool-and-die technicians, sheet metal workers, and general maintenance trades are the primary installers of this bit.

This bit is suited for drilling steel, stainless steel, cast iron, non-ferrous metals, superalloys, titanium, and other hard materials in both shop and field environments. The straight-cylindrical shank accepts standard drill chucks without modification. With an overall length of 1.875 inches and a flute length of 0.875 inches, the bit is well proportioned for close-tolerance work in tight-access locations. The Series R18 designation places it within PRECISION TWIST DRILL's R10-R15-R18 family of general-purpose jobber bits built to ANSI standards.

Key Features

• Wire gauge size 54 with 0.0550-inch decimal diameter for precision small-hole drilling
• 118-degree standard point angle compatible with a broad range of workpiece materials
• High speed steel construction with steam oxide coating for wear resistance
• Two-flute regular spiral design with web-thinned tapered web for reduced drilling thrust
• Straight-cylindrical shank fits standard drill chucks without adapters
• Conforms to ANSI standards; Series R10-R15-R18

Compatibility

Designed as a general-purpose OEM-style jobber length drill bit for use in standard three-jaw drill chucks accepting a 0.0550-inch straight-cylindrical shank across bench drills, drill presses, and hand-held power drills.

Installation Notes

Installation and use of small-diameter drill bits should be performed by qualified machinists or trade professionals familiar with proper chuck-seating procedures. Secure the workpiece firmly before drilling to prevent bit deflection or breakage at this small diameter. Power down and de-energize any machine tool before changing bits. Use appropriate cutting fluid for harder workpiece materials to extend bit life and maintain hole quality.