The DEWALT drive guide is designed to eliminate wobbling and slipping when driving long screws and fasteners. DEWALT understands that, on real-world jobsites, common mistakes can be frustrating and costly. The magnetic drive guide holds screwdriver bits in place to avoid finger injuries and damaged work surfaces, no matter what the material. With a self-retracting guide sleeve, the drive guide will never get in the way or hold you back on an important job.