Enhanced cutting precision The close-fit connection technology delivers tighter joints for door and window frames and enables accurate 45-degree angle cuts with high precision. Reliable auxiliary tool A wear-resistant structure, deformation-resistant properties, and a reinforced insulating plate ensure consistent performance over a long service life. Precise cutting Integrated calibration marks enhance safety and precision, allow quick alignment, and prevent shifting during cutting thanks to a stable clamping construction. This improves efficiency and accuracy on every project. Efficient window helper Specifically designed for window installation, it cuts precisely through wood, PVC, and aluminum. Seamless integration with hand or power tools makes it the ideal companion for DIY projects of any kind. Use scenarios - Window replacement or new window installation: ensures clean joints and exact 45-degree miters for frame components. - Door frame and trim work: maintains consistent joints and precise alignment during framing and finishing. - Renovation projects with repetitive cuts: handles multiple identical cuts through wood, PVC, and aluminum with reliable accuracy and efficiency.