Precision Twist Drill 5997578 5/64 in Hss Jobber Drill

Product Description

The PRECISION TWIST DRILL 5997578 is a 5/64 inch (0.0781 inch decimal) jobber length drill bit engineered for general-purpose drilling in a wide range of materials. Manufactured from high speed steel with a steam oxide coating for added lubricity and corrosion resistance, it features a 118-degree standard point angle and a regular spiral flute configuration. The web-thinned, tapered web design reduces thrust during entry and improves chip evacuation. Licensed HVAC, plumbing, electrical, and mechanical trades rely on this bit for precision hole-making in ferrous and non-ferrous substrates during equipment installation and service work.

This bit is suited for drilling into steel, stainless steel, cast iron, non-ferrous metals, superalloys, titanium, and other hard materials. Its 2-inch overall length and 1-inch flute length make it appropriate for shallow to moderate depth drilling tasks typical in trade and industrial maintenance applications. The straight-cylindrical shank seats securely in standard 3-jaw chucks across corded and cordless drill platforms. It conforms to ANSI standards and NAS 907 specification, making it compatible with regulated maintenance and manufacturing workflows.

Key Features

• 5/64 inch (0.0781 inch) diameter with matching straight-cylindrical shank diameter for concentric runout
• 118-degree standard point angle for general-purpose entry across multiple workpiece materials
• High speed steel construction with steam oxide coating for lubricity and light corrosion resistance
• Web-thinned, tapered web design reduces drilling thrust and improves chip clearing
• Regular spiral, 2-flute configuration with 1-inch maximum drilling depth
• Meets ANSI standards and NAS 907 specification; Series R10A-R15A-R18A

Compatibility

Designed as a general-purpose OEM-style jobber drill bit rated for use in steel, stainless steel, cast iron, non-ferrous metals, superalloys, and titanium workpieces per material codes P, M, K, N, and S classifications.

Installation Notes

Installation of this bit is performed by machinists, electricians, plumbers, HVAC technicians, and general mechanical trades using standard 3-jaw keyed or keyless drill chucks. Secure the straight-cylindrical shank fully into the chuck before operation and confirm the bit is centered with no visible runout. Always wear appropriate eye protection and secure the workpiece before drilling. Use cutting fluid when drilling into stainless steel, hardened steel, or superalloy materials to preserve bit life and reduce heat buildup.