Precision Twist Drill 015012 Hss Jobber Drill Bit

Product Description

The PRECISION TWIST DRILL 015012 is a high-speed steel (HSS) jobber-series drill bit built for drilling into hard materials where heat and mechanical stress are constant concerns. With a tip diameter of 0.290 inches and a depth of cut reaching 4 inches, this bit handles deep-hole applications in metal, cast iron, hardened plastics, and similar tough substrates. The HSS construction resists heat buildup and maintains edge integrity through demanding production or service work. It is a standard tool for machinists, pipefitters, electricians, and other trade professionals who need consistent performance in a general-purpose jobber-length format.

This drill bit is suited for use in both shop and field environments where jobber-length reach is required. The 4-inch depth of cut and 0.290-inch diameter make it appropriate for a wide range of tasks including bolt clearance holes, conduit knockouts in light-gauge steel, and bracket fabrication. It is compatible with standard drill chucks and magnetic drill presses that accept conventional round-shank bits. Sold individually, it fits into any existing set rotation or serves as a direct replacement for a worn or broken bit of the same diameter.

Key Features

• High-speed steel (HSS) construction resists heat and wear during hard-material drilling
• 0.290-inch tip diameter for precise, consistent hole sizing
• 4-inch depth of cut handles deep-hole applications in a single pass
• Jobber-series length fits standard drill chucks and magnetic drill presses
• Single-piece quantity makes it easy to replace individual bits without buying a full set

Compatibility

Designed as an OEM-style jobber drill bit replacement for use in standard drill chucks accepting conventional round-shank HSS bits of 0.290-inch diameter.

Installation Notes

Secure the bit firmly in the chuck before operation and verify the shank is fully seated to prevent slippage. Power down and disconnect the drill or drill press before changing bits. Use appropriate cutting fluid or coolant when drilling ferrous metals to extend bit life and reduce heat buildup. Follow applicable shop safety practices and OSHA guidelines for rotating machinery when operating drill equipment.

Technical Specifications

• Tip Diameter: 0.290 inches
• Depth of Cut: 4 inches
• Overall Length: 4.25 inches
• Material: High-Speed Steel (HSS)
• Series: Jobber
• Weight: 0.65 pounds
• Sold As: Each
• Minimum Order Quantity: 1

Standard Information

• Brand: PRECISION TWIST DRILL
• Manufacturer Part Number: 015012