Precision Twist Drill 015021 Hss Jobber Drill Bit

Product Description

The PRECISION TWIST DRILL 015021 is a high-speed steel (HSS) jobber-series drill bit built for drilling into hard materials in demanding trade and industrial environments. With a tip diameter of 0.3680 inches, a depth of cut of 4 inches, and an overall length of 5 inches, this bit is sized for general-purpose jobber applications. HSS construction allows the bit to maintain hardness at elevated temperatures, making it suitable for sustained use in ferrous metals, hard plastics, and similar materials. Licensed tradespeople and industrial maintenance techs reach for jobber-series bits as a reliable go-to for standard hole-making tasks.

This bit is suited for use in both stationary drill press setups and handheld power drill applications across residential, commercial, and light industrial job sites. The jobber-length format strikes a practical balance between rigidity and reach, making it a common choice for HVAC, plumbing, and electrical rough-in work where drilling through structural members or metal enclosures is routine. Sold individually as a single unit.

Key Features

• High-speed steel (HSS) construction resists heat buildup during hard-surface drilling
• 0.3680-inch tip diameter for precise, consistent hole sizing
• 4-inch depth of cut accommodates thick stock and structural members
• 5-inch overall length in the standard jobber format for broad compatibility with drill chucks
• Minimum order quantity of 1 — available as a single bit

Compatibility

Designed as a standard HSS jobber-series drill bit compatible with conventional 3-jaw drill chucks accepting round-shank bits in the 0.3680-inch diameter range, suitable for drill presses and handheld power drills.

Installation Notes

This bit is installed by tradespeople and maintenance technicians using standard drill press or handheld power drill equipment. Ensure the chuck is fully tightened and the workpiece is securely clamped before drilling. Use appropriate cutting fluid or lubricant when drilling ferrous metals to extend bit life and reduce heat. Always wear appropriate eye protection and follow applicable OSHA safety standards for drilling operations.

Technical Specifications

• Series: HSS Jobber
• Tip Diameter: 0.3680 inches
• Depth of Cut: 4 inches
• Overall Length: 5 inches
• Weight: 0.65 pounds
• UPC: 086071150219

Standard Information

• Brand: PRECISION TWIST DRILL
• Manufacturer Part Number: 015021