Drill Bit 3/8″ Cobalt Split Point Stub – Drill America Pack of 6

Description

Product Overview

Drill America brings professional-grade performance to the workshop with the 3/8″ Cobalt Split Point Stub Length Drill Bit, part of the DWDSTCO series. Constructed from high‑grade cobalt alloy, this bit combines the hardness needed to cut through hardened steel with the toughness required for extended service life. The split‑point tip is engineered to start drilling without wandering, delivering a clean, accurate entry that reduces material stress and improves overall hole quality. Each bit measures a stub (screw machine) length, offering a compact profile that fits tightly into tight‑space applications while still providing the reach needed for deeper holes. The set includes six identical bits, each packaged in a durable, reusable case that protects the cutting edges during storage and transport. Package dimensions are 7.4 x 3.66 x 0.43 inches, weighing just over 7 ounces, making the set easy to carry on‑site or keep in a tool chest.

Usage

These cobalt split point bits excel in a variety of environments, from automotive repair bays to construction sites and home workshops. The 3/8″ diameter is ideal for medium‑size holes in metal, stainless steel, aluminum, and hardwoods, making the set a versatile choice for fabricators, electricians, and DIY enthusiasts alike. The stub length design allows the bit to reach into confined spaces such as engine blocks, gear housings, and tight‑fit assemblies where longer bits would be impractical. The cobalt composition maintains its cutting edge at high temperatures, so users can drill at higher speeds without sacrificing accuracy or risking premature wear. Whether you are installing fasteners, creating clearance holes for wiring, or performing precision drilling for custom projects, this set provides the reliability and consistency needed to complete the job efficiently.

Why Choose Us

Choosing Drill America means selecting a brand with a legacy of quality and innovation in power tool accessories. Each bit undergoes rigorous testing to meet industry standards for hardness, impact resistance, and dimensional stability. The cobalt alloy formulation is specifically blended to resist the abrasive forces encountered when drilling hardened alloys, ensuring that the cutting edges stay sharp longer than standard high‑speed steel bits. Our manufacturing process includes precision grinding and a proprietary heat‑treatment cycle that balances hardness with toughness, reducing the risk of chipping under heavy load. In addition, the DWDSTCO series is backed by a satisfaction guarantee, providing customers with confidence that any manufacturing defect will be addressed promptly. The six‑piece packaging not only offers cost savings but also ensures you have a complete set ready for any project, eliminating the need to purchase individual bits separately.

Key Features

• Premium cobalt alloy delivers superior durability and heat resistance for long‑lasting performance.
• Split‑point tip starts holes accurately, minimizing walk‑off and improving hole precision.
• Stub (screw machine) length provides compact reach for tight‑space applications while maintaining strength.
• Versatile 3/8″ diameter works across metal, stainless steel, aluminum, and hardwoods for multiple project types.
• Six‑piece set includes a sturdy storage case and is backed by Drill America’s customer support and warranty.

FAQ

What materials can these cobalt bits drill?

They are designed to handle a wide range of materials, including hardened steel, stainless steel, aluminum, brass, and hardwoods, making them suitable for both industrial and DIY projects.

How does the split‑point design improve drilling?

The split‑point tip reduces the tendency of the bit to wander when it first contacts the workpiece, allowing for a more accurate start and a cleaner hole, especially in hard materials.

Is the stub length suitable for deep holes?

While the stub length is optimized for reaching into confined spaces, it still provides enough length to drill moderate‑depth holes. For very deep drilling, a longer‑shank bit may be more appropriate.

What is the warranty coverage for this set?

Drill America offers a limited warranty that covers manufacturing defects. If a bit fails due to a defect, the company will replace it or provide a refund, ensuring peace of mind for the buyer.

Can I use these bits with any drill brand?

Yes, the bits feature a standard 1/2″ shank that fits most corded and cordless drills, including popular brands such as DeWalt, Makita, Milwaukee, and Bosch.