Precision Twist Drill 015005 Hss Jobber Drill Bit

Product Description

The PRECISION TWIST DRILL 015005 is a high-speed steel (HSS) jobber-series drill bit designed for drilling through hard materials in demanding trade and industrial applications. With a 0.25-inch tip diameter and a 4-inch depth of cut, this bit is built to handle the heat and mechanical stress generated when penetrating hard surfaces. HSS construction provides the hardness needed to maintain a cutting edge through repeated use. Licensed tradespeople and skilled DIYers working with metal, hard plastics, or similar substrates rely on jobber-series bits like this one for consistent, repeatable hole quality.

This jobber drill bit is suited for use in general metalworking, maintenance and repair, HVAC fabrication, plumbing rough-in, and electrical trade work where precise, clean through-holes are required. The 0.25-inch diameter is a common size for anchor bolt clearance holes, conduit knockout preparation, and fastener pilot holes in metal panels or structural components. Its standard jobber length makes it compatible with most benchtop drill presses and handheld corded or cordless drills.

Key Features

• High-speed steel (HSS) construction resists heat buildup during hard-surface drilling
• 0.25-inch tip diameter for common fastener and clearance hole applications
• 4-inch depth of cut accommodates standard jobber-length drilling tasks
• Black oxide finish helps reduce friction during cutting
• Sold as a single unit (minimum order quantity: 1)

Compatibility

Designed as a standard jobber-series HSS drill bit compatible with any drill press or handheld drill accepting a 0.25-inch shank.

Installation Notes

A licensed tradesperson or qualified mechanic should select the appropriate drill speed for the material being drilled — slower speeds are generally recommended for harder metals to prevent premature bit wear. Always secure the workpiece firmly before drilling. Use cutting fluid or coolant when drilling hard metals to extend bit life and maintain edge integrity. Inspect the cutting edges before each use and replace the bit if chipping or dulling is observed.

Technical Specifications

• Tip Diameter: 0.25 inches
• Depth of Cut: 4 inches
• Material: High-Speed Steel (HSS)
• Finish: Black Oxide
• Weight: 0.45 pounds
• UPC: 086071150059

Standard Information

• Brand: PRECISION TWIST DRILL
• Manufacturer Part Number: 015005