Precision Twist Drill 5999208 Jobber Drill Bit 13 Hss

Product Description

The PRECISION TWIST DRILL 5999208 is a jobber length drill bit in wire gauge size 13 (0.1850 inches), manufactured from high speed steel with a bright uncoated finish. It features a standard 118-degree split-point angle, two spiral flutes with a regular helix, and a straight cylindrical shank. The overall length is 3.5 inches with a flute length of 2.3125 inches. This bit is suited for general-purpose drilling operations performed by machinists, maintenance technicians, and fabricators working in production or field environments.

This drill bit is designed for drilling into a broad range of workpiece materials including steel, stainless steel, cast iron, non-ferrous metals, superalloys, and titanium. The web-thinned, tapered web construction reduces thrust requirements when starting holes. It is appropriate for both manual drill press setups and handheld power tool applications where a wire gauge 13 diameter hole is required. The bit belongs to Precision Twist Drill Series R18P and conforms to ANSI standards for jobber length geometry.

Key Features

• Wire gauge size 13 — 0.1850 inch diameter for precise hole sizing
• High speed steel construction for general-purpose drilling durability
• 118-degree standard point angle compatible with a wide range of materials
• Web-thinned tapered web reduces entry thrust and improves chip clearance
• Bright uncoated finish — no coating buildup to affect dimensional accuracy
• Right-hand cut, two-flute spiral design for standard drilling applications
• ANSI-compliant jobber length geometry for consistent fitment in standard chucks

Compatibility

Designed as a general-purpose jobber length drill bit compatible with standard three-jaw drill chucks accepting a 0.1850 inch straight cylindrical shank. Suitable for bench drill presses, handheld power drills, and CNC drilling fixtures configured for wire gauge tooling. Part of the Precision Twist Drill R10P-R15P-R18P series.

Installation Notes

Secure the shank fully in the drill chuck and verify runout before beginning a drilling operation. Power down and de-energize any machine tool before changing or inspecting bits. When drilling hardened or abrasive materials such as stainless steel or superalloys, use appropriate cutting fluid to extend tool life and maintain surface finish. Follow applicable shop safety practices and machine guard requirements for the equipment in use.