Material - Made of Steel, with great hardness, it provides better cutting power, durability, and good abrasion resistance, great efficiency, smooth surfaces and long life, provides robust and reliable performanceAdjustable - An adjustable counter sleeve depth can be easily adjusted with the provided allen wrench, for different length screws, ensuring versatile use, this is an essential woodworking toolEasy to Use - Secure your workpiece properly, use a slow consistent speed while drilling for better control and accuracy, adjust the counter sleeve depth to achieve the desired results on different materialsQuick Release System - Compatible with the popular quick release system, seamlessly integrate this countersink into your existing setup for efficient tool changes and increased productivity, with quick change chunks and impact drivers to allow fast bit changesMulti-Purpose - Suitable for home or professional woodworking project, used on wood, plastic, PVC, fiberboard, particleboard, plywood, rubber and more, drill the pilot hole and countersink for the head of the screw or counterbore for the plug in one step