The Perfect 90 AngleCreating a 90-degree right angle joinery will be a breeze, so ensuring a balanced project outcome is essential. Quickly and easily secure squares. Suitable for wood/metal right angle/welding/soldering 90 degrees.Practical DesignThe inside corners are rounded outward to allow for a slight overhang at the corners of the square. Provides two countersunk holes for 1/4 bolts and a large sliding surface for securing to the work surface as needed.Metric and Imperial SizesThe scale is accurate, durable, and easy to read, so the right angle joinery jig can be used for many years. 120 x 120 x 16 mm (4.72 x 4.72 x 0.63 inches). Place a square in the corner of the two pieces you need to square and secure with a set of clamps, very easy to use.Versatile Use With our 90 degree positioning clamps, you have exactly what you need to create square boxes, drawers, cabinets, frames, furniture, etc. Some woodworkers even find it useful to incorporate them into their jigs and fixtures.18 Month Warranty All products have an 18 month warranty. Package includes: 4 * positioning box. If you have any questions, please feel free to contact us, we will reply you within 24 hours.