Precision Twist Drill 5997017 Jobber Drill Bit Wire 51 Hss

Product Description

The PRECISION TWIST DRILL 5997017 is a jobber-length drill bit sized to wire gauge 51, equivalent to 0.0670 inches in decimal. Built from high-speed steel with a bright uncoated finish, it features a 135-degree split-point tip and a parabolic spiral flute design for efficient chip evacuation. The straight-cylindrical shank measures 0.0670 inches in diameter. Overall length is 2 inches, with a 1-inch flute length and 1-inch maximum drilling depth. This bit is intended for use by machinists, maintenance technicians, and metalworking tradespeople who need consistent, repeatable performance in small-diameter drilling applications.

This bit is suited for drilling into steel, stainless steel, cast iron, non-ferrous metals, superalloys, and titanium. It fits standard drill chucks accepting straight-cylindrical shanks at 0.0670 inches. Typical applications include precision hole-making in fabrication, tool-and-die, HVAC sheet metal, electrical panel work, and general maintenance drilling where wire-gauge sizing is required. The QC21P series is a general-purpose heavy-duty classification designed for production and job-shop environments.

Key Features

• Wire gauge size 51 (0.0670 inches decimal) for precision small-diameter drilling
• 135-degree split-point tip reduces walking and requires no center punch on metal surfaces
• High-speed steel construction handles steel, stainless steel, cast iron, non-ferrous metals, superalloys, and titanium
• Parabolic spiral flute with web-thinned tapered web promotes fast chip removal and reduces thrust
• Bright uncoated finish allows easy visual wear inspection during service
• ANSI-standard geometry ensures compatibility with standard toolholding equipment

Compatibility

Designed as a general-purpose jobber-length drill bit for use in standard drill chucks and rotary tools accepting a 0.0670-inch straight-cylindrical shank. Suitable for hand drills, drill presses, and CNC machining centers configured for small-diameter wire-gauge bits.

Installation Notes

Installation and use of this drill bit should be performed by a qualified machinist or tradesperson familiar with rotating cutting tools. Ensure the drill chuck is fully tightened and the workpiece is securely clamped before operation. Always wear appropriate eye protection and follow applicable shop safety standards when operating drilling equipment. Do not exceed the recommended drilling depth of 1 inch for this bit size.