Easy-grip handle gives you a secure hold and complete control over each and every joint * Hardened Steel Drill Guides keep your specialized stepped bit and driver bit at the precise, optimal angle * Handy Spacer Rings ensure accurate deck board spacing for proper drainage and longer deck life * Three separate Drill Guides let you install deck boards in a variety of hard-to-reach areas * Optimal use is with 3/4-inch to 5/4-inch thick material