Eagle Cutting Tool S300-012-I Cobalt Jobber Drill 3/16

Product Description

The EAGLE CUTTING TOOL S300-012-I is a 3/16-inch cobalt jobber-length drill bit designed for drilling through hard metals, stainless steel, cast iron, and abrasion-resistant alloys. Cobalt construction offers superior heat resistance compared to standard high-speed steel, making it well suited for demanding trade applications where drill life and hole quality matter. This bit is appropriate for use in portable electric drills, drill presses, and magnetic base drills. Electricians, plumbers, HVAC techs, and general contractors reach for cobalt jobber bits when working through structural steel, strut, and heavy-gauge sheet metal.

The S300-012-I is used in residential and light commercial construction and service work wherever a 3/16-inch hole is required in ferrous and non-ferrous metals. Typical applications include drilling pilot holes in steel framing, conduit hangers, pipe straps, and HVAC bracket mounting points. The jobber-length flute provides a practical balance of reach and rigidity for general-purpose metal drilling tasks.

Key Features

• Cobalt steel construction for extended heat resistance and tool life in hard-metal drilling
• 3/16-inch diameter in jobber-length format for general-purpose reach and rigidity
• Suited for ferrous metals, stainless steel, cast iron, and abrasion-resistant alloys
• Compatible with standard drill chucks on portable drills and drill presses
• Minimum order quantity of 1, suitable for single-unit replacement or stocking

Compatibility

Designed as a general-purpose 3/16-inch cobalt jobber drill bit compatible with standard three-jaw drill chucks on portable electric drills, cordless drills, and drill presses accepting fractional-inch tooling.

Installation Notes

Secure the bit firmly in the drill chuck before use and confirm there is no lateral runout. When drilling hard metals, use a center punch to establish a starting point and apply consistent feed pressure to avoid bit walking. Cutting fluid or oil is recommended when drilling stainless steel or thick ferrous stock to reduce heat buildup and extend bit life. Follow applicable workplace safety guidelines for eye and hand protection when drilling metal.

Technical Specifications

• Diameter: 3/16 inches
• Drill Type: Jobber Length
• Material: Cobalt Steel
• Weight: 0.5 pounds

Standard Information

• Brand: EAGLE CUTTING TOOL
• Manufacturer Part Number: S300-012-I