Precision Twist Drill 5998090 Drill Bit Wire 67 Hss

Product Description

The PRECISION TWIST DRILL 5998090 is a jobber-length drill bit sized at wire gauge 67 (0.0320 inches decimal) and manufactured from high-speed steel with a bright, uncoated finish. It features a 118-degree standard drill point angle and a 2-flute spiral configuration with a tapered web design that includes web thinning for improved chip clearance and reduced thrust during entry. Overall length is 1.375 inches with a 0.50-inch flute length and a straight-cylindrical shank. This is a general-purpose, right-hand-cut bit suited for precision small-diameter drilling operations performed by machinists, maintenance technicians, and fabricators.

This drill bit is intended for use in drilling operations on steel, cast iron, non-ferrous metals, superalloys, and titanium. Its small diameter and jobber-length profile make it appropriate for through-hole work, pilot drilling, and light-production drilling on benchtop drill presses, hand drills, and CNC drilling setups where precise hole sizing at wire gauge diameters is required. The 16xD flute-to-diameter ratio supports controlled chip evacuation in shallow-depth applications up to 0.50 inches maximum drilling depth. Sold individually per package.

Key Features

• Wire gauge 67 sizing at 0.0320 inches decimal for precision small-diameter holes
• 118-degree standard point angle with web thinning for reduced entry thrust
• High-speed steel construction suitable for steel, cast iron, non-ferrous metals, superalloys, and titanium
• 2-flute regular spiral with tapered web for consistent chip flow
• Bright uncoated finish, ANSI specification compliant
• Straight-cylindrical shank fits standard drill chucks without adapter

Compatibility

Designed as a general-purpose jobber-length drill bit in the R10H-R18H series, compatible with standard drill chucks that accept a 0.0320-inch straight-cylindrical shank across benchtop, handheld, and CNC drilling equipment.

Installation Notes

Installation and use should be performed by qualified machinists or trained maintenance personnel. Secure the straight shank fully in the drill chuck before operation and verify chuck tightness to prevent bit slippage on small-diameter tooling. Power down and de-energize all equipment before changing tooling. At this diameter, avoid side loading or leverage forces that can snap the bit; use appropriate drill press speeds and feeds for the workpiece material.