Features:Brand new and high quality. Stainless Steel Locking Ball Ensures Secure Fit. Sockets Snap-On Tightly & Won't Slip Off. SDS Plus Socket Prevents Stripping During High Speed Drill Operation. Super Strong Heat Treated Chrome Vanadium Steel for Normal & Impact. Use - Sandblasted Finish. Converts All Power Drills into Speedy Socket Drivers. Applies to the screwdriver handle or electric. Can be used for the installation of the sleeve, is a good accessories to convert.