Easy to use and portable Close the switch lock for convenience; open during use to extend tool life. Precise clamping control Designed with gaps on both sides for easy depth adjustment, ensuring secure clamping and accurate corner bending. Versatile applications Compatible with 150/75 series light steel keels; suitable for bending metal and plastic panels in window and door construction. Multipurpose tool Suitable for ceilings, suspended ceilings, and rusty steel plates; ideal for window structure construction design. Use scenarios Window and door frame fabrication in construction, bending metal or plastic panels to create precise corners with controlled depth. Ceiling installation in suspended ceiling systems, clamping and shaping keel profiles to fit grid intersections without distortion. Retrofit or work on rusty steel plates, forming replacement metal panels for window structure components.