Aluminium Construction: Crafted from a grade aluminium alloy, this drill bit adapter delivers strong hardness and wear resistance for woodworking projects, providing reliable longterm performance in demanding workshop environments. Quick Tool Installation: Snapin design enables effortless attachment and removal without tools, allowing rapid setup changes between different drill bits and boosting productivity on complex projects. General Compatibility Design: Engineered to fit mortising machines with a 20mm part width and to accommodate hole drill bits with a 3843mm exposed diameter, offering flexible solutions for various square hole drilling applications in furniture making and carpentry. Enhanced Drilling Accuracy: Transforms standard drilling operations into precise, stable performance, delivering professionalgrade results with clean square holes and smooth edges that meet exacting woodworking standards for furniture joints and mortise connections. Practical use scenarios Mortiseandtenon work in cabinets, tables, and other furniture where precise square holes improve joint alignment and strength. Furniture fabrication projects requiring rapid tool bit changes to prepare multiple square holes efficiently. General carpentry tasks that require consistent square holes and clean edges for reliable mortise connections and furniture joints.