Built from grade aluminum alloy: durable, rustresistant construction that stays lightweight for easy handling and overhead work. Adjustable 16–24 inches: quickly change the span by loosening the screws and sliding the arms to match your project needs — no special tools required. Three precision grooves for accuracy: each groove is sized to hold standard 2inchwide wood pieces securely, keeping lumber aligned for strong frames and reliable beam hangers. Speeds up framing work: eliminates the need for scribing and repeated measuring, allowing faster, more consistent stud placement and assembly. Stable, repeatable results: groove alignment and secure clamping reduce shifting during nailing or screwing, improving overall build quality and reducing rework. Typical applications Wall framing and stud layout: set consistent spacing and hold studs steady while fastening. Beam hanger and header assembly: align joists and headers quickly when installing hangers or building support assemblies. Door, window, and small frame construction: maintain accurate alignment for repetitive pieces during production or onsite work. Key specifications and functions Material: grade aluminum alloy (lightweight, corrosion resistant) Adjustable range: 16 to 24 inches Groove design: three grooves sized for standard 2inchwide wood pieces Adjustment method: slide to position and secure with quickloosen screws Primary use: positioning and holding lumber for framing, beam hangers, and related woodworking tasks Why choose this tool Saves time by removing scribing and reducing measuring steps Improves accuracy and repeatability on repetitive framing tasks Lightweight construction reduces user fatigue during extended use or overhead work