FAST AND CLEAN CORNER SQUARING: Squares rounded hinge recess corners with a single hammer strike, helping achieve clean and accurate results without the need for careful hand chiselling SAVES TIME ON INSTALLATION: Speeds up door fitting by quickly finishing hinge mortises and lock faceplates, reducing manual work and improving efficiency on site and in the workshop SPRING LOADED FOR CONSISTENT CUTS: Internal spring mechanism helps deliver controlled and repeatable cuts, making it easier to achieve uniform square corners across multiple recesses SUITABLE FOR COMMON MATERIALS: Works on MDF, plywood, softwood, and hardwood, making it a practical tool for door installation, cabinetry, and general joinery tasks DURABLE AND RESHARPENABLE EDGE: Features a high speed steel cutting edge that can be resharpened for continued performance, supporting long term use in professional and DIY toolkits