The Irwin 66720ZR is a 5/16-inch diameter drill bit with an extended 6-inch overall length, designed for drilling in wood, metal, and plastic. The M-2 high-speed steel construction provides strength and heat resistance for demanding drilling tasks, while the black oxide coating protects against corrosion and wear. This drill bit is ideal for reaching tight spaces, running wires and cables, and tackling projects where a standard-length bit falls short.
Whether you're a professional contractor or a DIY enthusiast, this extended-length drill bit solves common drilling challenges. The 135-degree split point geometry ensures a true start without bit walking, delivering accurate holes every time. The combination of durable materials and thoughtful design makes this bit reliable for general-purpose applications across multiple materials.
Features and Benefits
Specifications
| SKU | 24877 | UPC | 042526667206 |
| Weight | 0.1 | Package Width | 1.9 |
| Package Length | 0.35 | Package Height | 8.05 |
| Model Number | 66720ZR | Brand | Irwin |
| Manufacturer Name | BLACK & DECKER US INC |