Precision Twist Drill 015016 Hss Jobber Drill Bit

Product Description

The PRECISION TWIST DRILL 015016 is a high-speed steel (HSS) jobber-series drill bit engineered for drilling into hard materials where heat resistance and edge retention matter. It features a 0.3230-inch tip diameter and a 4-inch depth of cut, with an overall length of 4.625 inches. HSS construction allows the bit to maintain hardness at elevated cutting temperatures, reducing the risk of premature dulling on ferrous metals, cast iron, and similar hard substrates. This bit is sold individually and is suited for use by machinists, pipefitters, electricians, and general trade professionals who need a reliable jobber-length bit for everyday hole-making tasks.

The 015016 fits standard drill chucks and is appropriate for use in handheld power drills, drill presses, and magnetic base drills. Its jobber-length geometry — a standard flute-to-shank ratio — makes it a versatile choice across residential, commercial, and light industrial work sites. Typical applications include drilling through structural steel, pipe, conduit, brackets, and hardware. The 0.3230-inch diameter corresponds to the Q letter drill size, which is commonly referenced in mechanical and electrical trade work for clearance and tapping operations.

Key Features

• High-speed steel (HSS) construction resists heat buildup during prolonged drilling in hard materials
• 0.3230-inch tip diameter suits clearance hole and tapping layout tasks in trade applications
• 4-inch depth of cut accommodates through-drilling on standard structural members and pipe walls
• Jobber-series flute length provides a balance of rigidity and chip evacuation
• 4.625-inch overall length fits standard drill chucks without extended reach adapters

Compatibility

Designed as a jobber-length HSS drill bit compatible with standard three-jaw drill chucks accepting round shanks up to 0.3230 inches in diameter, for use in handheld drills and bench-mounted drill presses.

Installation Notes

Secure the bit firmly in the chuck before operation and verify the chuck key is removed prior to starting the drill. Use appropriate cutting fluid or lubricant when drilling ferrous metals to extend bit life and improve cut quality. Wear ANSI-rated eye protection and secure the workpiece with a clamp or vise — never hold it by hand. Inspect the cutting edges for wear or chipping before each use and replace the bit if the tip shows signs of dulling or heat discoloration.

Technical Specifications

• Material: High-Speed Steel (HSS)
• Series: Jobber
• Tip Diameter: 0.3230 inches
• Depth of Cut: 4 inches
• Overall Length: 4.625 inches
• Weight: 0.45 pounds
• UPC: 086071150165

Standard Information

• Brand: PRECISION TWIST DRILL
• Manufacturer Part Number: 015016