Precision Twist Drill 010031 Hss Jobber Drill Bit 31/64 in

Product Description

The PRECISION TWIST DRILL 010031 is a high-speed steel (HSS) jobber-series drill bit built for drilling into hard surfaces where heat and cutting force are significant factors. With a tip diameter of 31/64 inches and a depth of cut reaching 4 inches, this bit handles deep-hole applications that standard general-purpose bits cannot sustain. Overall length is 5-7/8 inches. HSS construction resists heat buildup at the cutting edge, extending tool life in demanding production and maintenance drilling tasks. This bit is suited for machinists, maintenance technicians, pipefitters, and other trades requiring reliable metal-drilling performance.

This jobber-series drill bit is appropriate for use on ferrous and non-ferrous metals, including steel, cast iron, aluminum, and similar hard materials. It fits standard drill presses, handheld power drills, and magnetic base drills that accept jobber-length bits with a matching chuck size. The 31/64-inch diameter makes it a practical choice for bolt-clearance holes and precision through-holes in structural and mechanical assemblies.

Key Features

• High-speed steel (HSS) construction resists heat and wear during aggressive drilling
• 31/64 inches tip diameter for precise, consistent hole sizing
• 4 inches depth of cut accommodates deep-hole requirements
• Jobber-series length (5-7/8 inches overall) fits standard chucks and drill presses
• Designed to withstand extreme cutting force on hard surfaces

Compatibility

Designed as a jobber-length HSS drill bit compatible with standard drill chucks and drill presses accepting 31/64-inch shank tooling in industrial, commercial, and maintenance drilling applications.

Installation Notes

Secure the bit firmly in the chuck before operation and verify the workpiece is clamped or fixtured to prevent movement. Use appropriate cutting fluid or coolant when drilling ferrous metals to manage heat and extend bit life. Inspect the cutting edges for wear or damage before each use and replace the bit if chipping or dulling is observed. Installation and operation should follow applicable workplace safety standards for rotating cutting tools.

Technical Specifications

• Series: HSS Jobber
• Tip Diameter: 31/64 inches
• Depth of Cut: 4 inches
• Overall Length: 5-7/8 inches
• Material: High-Speed Steel (HSS)
• Weight: 1.25 pounds
• Unit of Measure: Pack
• Minimum Order Quantity: 1
• UPC: 086071100313

Standard Information

• Brand: PRECISION TWIST DRILL
• Manufacturer Part Number: 010031