90-degree precision for frame and joint assembly Engineered to maintain exact 90-degree alignment, the clamp provides stable support during frame and joint work, reducing errors from shifting positions. Non-slip positioning system Features a pressure-lock mechanism and slip-resistant surfaces that minimize re-adjustments. Position workpieces quickly with one hand while keeping a firm grip and accurate alignment. Ergonomic and smooth operation Ergonomic design with a comfortable grip reduces hand fatigue. The spring-assisted mechanism delivers consistent clamping performance and smooth operation to boost efficiency. Versatile compatibility for varying thicknesses Adapts to different material thicknesses and offers broad compatibility for diverse clamping tasks in woodcraft and furniture assembly. Practical use scenarios - Frame and joint assembly in wood projects requiring square corners. - Glue-ups for cabinet frames, shelves, and other furniture components. - Quick one-handed positioning during repetitive right-angle clamping in furniture work.