It's perfect for drawer construction and shelf installation. The innovative design aligns work pieces to 90 degrees, while the quick-adjust handle lets you make fast, easy adjustmentsfor varying stock thickness up to 1-1/4". The unique swivel head and quick release lever improve ease of use and efficiency as you work. Its large clamping surface protects soft woods against workpiece imprints. Durable, heat-treated steel construction features nickel plating for additional longevity.