Adhesive Back Sanding Sheet: Silicon Carbide, 120 Grit, 4-1/2" Wide, 10 yd Long MPN:7100025487

The 2-1/2 overall length, 3/8 head diameter, 3 flutes, and 100 split point on this drill bit are designed for use with adjustable stop countersink machines or portable manual countersinking tools to create consistent counterbore dimensions across a range of material thicknesses. With its solid carbide construction, this bit offers outstanding durability compared to high-speed steel options while producing smooth, burr-free holes in materials like aluminum, brass, or mild steel for screws, rivets, and fastening applications. Its split point technology ensures accurate starts without walk-off or stripping even on hardened materials, reducing the need for pilot holes or center punches while saving time and decreasing potential for errors. Additionally, its adjustable counterbore stop allows for easy customization of hole depths and angles based on individual project requirements, making it a versatile choice suitable for both hobbyists and professionals seeking precision results in various industries. Overall, this countersink bit provides an efficient solution tailored to the unique demands of adjustable-stop countersinking applications.