Easy installation and operation The square hole drill bit adapter mortise tool fixing bracket can be quickly installed or removed by yourself, providing fast and convenient operation for your woodworking projects. Professional woodworking tool Designed for smooth drilling, this bracket is a reliable and musthave tool during woodworking projects, delivering precise and efficient results. Compatibility with electric drills Specifically designed for use with electric drills, this bracket ensures compatibility and performance for a wide range of woodworking tasks. Wide drill size compatibility The fixing bracket accommodates electric drills with an exposed clamping part of approximately 20 mm in width and a drill bit diameter ranging from 38 mm to 43 mm. Please carefully confirm the size before use to ensure a proper fit. Practical applications Mortising tasks in cabinet making and furniture building, where precise square holes are required. Hardware installation that uses squarehole mortises, such as hinges or fittings. General woodworking projects requiring reliable, repeatable mortising with compatible drill sizes.