Precision Twist Drill 5998019 Jobber Drill Bit Wire 5

Product Description

The PRECISION TWIST DRILL 5998019 is a jobber-length twist drill bit in wire gauge size 5, with a decimal diameter of 0.2055 inches. Made from high speed steel with a bright uncoated finish, it features a standard 118-degree split point angle and a regular spiral flute for efficient chip evacuation. The overall length is 3.75 inches with a 2.5-inch flute length and a straight cylindrical shank. This bit is a general-purpose drilling tool suited for use by machinists, maintenance technicians, and metalworking tradespeople working on production or field applications.

This drill bit is designed for drilling into steel, cast iron, non-ferrous metals, superalloys, and titanium. It fits standard drill chucks accepting a 0.2055-inch straight shank and is well suited for bench drill presses, hand drills, and CNC drilling operations where a wire gauge size 5 hole is required. The 12xD flute-to-diameter ratio and tapered web configuration with web thinning improve penetration and reduce thrust in tougher workpiece materials.

Key Features

• Wire gauge size 5, 0.2055-inch decimal diameter for precise hole sizing
• High speed steel construction for durability across steel, cast iron, and non-ferrous metal applications
• 118-degree standard point angle with web thinning for reduced entry thrust
• Regular spiral flute with tapered web for efficient chip clearing
• Bright uncoated finish compatible with cutting fluid use
• Right-hand cut with straight cylindrical shank — fits standard chucks without adapters

Compatibility

Designed as a general-purpose OEM-style jobber drill bit for use in standard three-jaw drill chucks and collet systems accepting a 0.2055-inch straight cylindrical shank. Rated for drilling steel, cast iron, non-ferrous metals, superalloys, and titanium per ANSI standards. Part of the R10H-R18H series.

Installation Notes

Machinists and maintenance technicians should secure the bit firmly in a properly sized chuck before operation and verify chuck runout is within acceptable limits. Power down and de-energize the drilling machine before inserting or removing bits. Apply appropriate cutting fluid when drilling steel or harder alloys to extend bit life and improve hole quality. Follow ANSI B94.11 or applicable shop safety standards for drill bit handling and storage.