Precision Twist Drill 5999103 Jobber Drill Bit Wire 53

Product Description

The PRECISION TWIST DRILL 5999103 is a jobber-length drill bit in wire gauge size 53, with a decimal diameter of 0.0595 inches and an overall length of 1.875 inches. Manufactured from high speed steel with a bright uncoated finish, it features a standard 118-degree split point, a two-flute regular spiral configuration, and a web-thinned tapered web for improved chip evacuation and reduced thrust on entry. The straight-cylindrical shank has a diameter of 0.0595 inches and a shank length of 1 inch. This bit is intended for general-purpose drilling operations performed by machinists, tool-and-die technicians, and maintenance professionals working in production and fabrication environments.

The 5999103 is suited for drilling steel, stainless steel, cast iron, non-ferrous metals, superalloys, and titanium. Its 15xD flute-to-diameter ratio and 0.875-inch flute length support a maximum drilling depth of 0.875 inches. Part of the R18P series, this bit is designed for use in standard drill presses, CNC machining centers, and hand-held electric drills where a wire-gauge diameter is required for precise hole sizing, tapping prep, or light-duty production work.

Key Features

• Wire gauge size 53, decimal diameter 0.0595 inches
• High speed steel construction for general-purpose metal drilling
• 118-degree standard point angle for center-starting accuracy
• Web-thinned tapered web reduces thrust and improves chip clearance
• Two-flute regular spiral with 0.875-inch flute length
• Bright uncoated finish; no coolant-through required
• ANSI standard specification; right-hand cut

Compatibility

Designed for use in standard drill chucks accepting a 0.0595-inch straight-cylindrical shank. Compatible with drill presses, CNC machining centers, and hand-held electric drills across the R10P, R15P, and R18P series applications. Suitable for workpiece materials coded P, M, K, N, and S per ISO material classification.

Installation Notes

Installation and use should be performed by qualified machinists or maintenance technicians familiar with rotating cutting tools. Secure the shank fully in the drill chuck before operation and verify chuck runout is within acceptable limits for small-diameter bits. Disconnect power or engage machine lockout before changing bits. Do not exceed recommended feed and speed parameters for high speed steel tooling in the target workpiece material.