Spring loaded corner chisel designed for hanging doors, offering faster, more reliable square corners than a manual hand chisel. Key benefits - Efficient and precise: spring loaded design creates a 90-degree corner space quickly and accurately, ensuring perfectly square corners. - Versatile applications: ideal for square angled hinge wells, door lock recesses, hinge pins, and flooring joints. - Durable and practical: aluminum construction provides high strength and toughness for long-term use. - Portable and convenient: compact size fits easily in a bag for on-site work. - Professional and hobbyist friendly: suitable for both furniture factories and woodworking enthusiasts. 2-3 practical use scenarios - Door installation: quickly cut hinge wells with square corners to ensure flush, aligned hinges on hanging doors. - Hardware fitment: recess door locks and strike plates for secure, flush installation. - Flooring and cabinetry: prepare precise corner spaces at joints and edges for clean, accurate results. Notes Creates a precise 90-degree corner space at each corner with high accuracy, delivering reliable performance in a compact, portable tool.