66708 Drill Bit, 1/8 In. Dia, 6 In. OAL, Black Oxide, Split Point

The Irwin 66708 is a 1/8-inch diameter drill bit with an extended 6-inch overall length, designed for drilling in situations where standard-length bits cannot reach. Made from M-2 high-speed steel and coated with black oxide, this bit combines strength and heat resistance with corrosion protection, making it reliable across wood, metal, and plastic applications. The split point tip design eliminates bit walking and ensures accurate starts, while the straight shank fits any standard drill chuck for quick changes.

This extended-length drill bit solves the common problem of accessing tight or recessed drilling areas—a necessity for electrical wiring installation, pilot hole creation, and tight-space work where a shorter bit would be impractical. Professionals and DIY users rely on this design for both everyday tasks and demanding applications.

Features and Benefits

• M-2 High-Speed Steel Construction: Provides optimal strength, heat resistance, and wear resistance for durability and consistent performance across repeated use.
• Black Oxide Coating: Resists corrosion and heat damage, extending the bit's lifespan and maintaining sharpness over time.
• Split Point Tip: Eliminates bit walking and ensures a true start for accurate drilling.
• Extended 6-Inch Length: Allows deep drilling and access to hard-to-reach areas, tight spaces, and recessed locations impossible with standard bits.
• Straight Shank: Allows quick bit changes on any standard drill.
• Versatile Multi-Material Use: Works equally well in wood, metal, and plastic, making it suitable for a broad range of jobs.

Specifications

• Brand: Irwin
• Model: 66708
• Diameter: 1/8 inch
• Overall Length: 6 inches
• Material: M-2 high-speed steel
• Coating: Black oxide
• Tip Style: Split point
• Shank Type: Straight shank