Professional metal triangle ruler designed for guitar builders and instrument technicians. A compact, durable measuring tool for layout, alignment, and setup tasks that demand consistent, repeatable results. Key benefits Reliable alignment and layout: Triangle shape provides stable reference edges for squaring necks, setting bridge positions, and checking body and headstock angles. Durable construction: Metal body stands up to workshop use and maintains straight edges without warping. Improves accuracy and workflow: Faster, clearer measurements reduce rework and help achieve consistent setup and build outcomes. Portable and easy to use: Compact size fits in a tool kit or bench drawer for onthego repairs and work. Functions and important attributes Function: Acts as a precise straightedge and angle reference for measuring, marking, and aligning parts during construction and . Compatibility: Suitable for acoustic and electric guitars, basses, ukuleles, and other fretted stringed instruments used by luthiers, technicians, and hobbyists. Size: Compact and benchfriendly for close work; fits alongside other workshop tools. Material: Solid metal construction for long life and consistent edge straightness. Performance: Stable reference edges help produce repeatable setups and accurate component placement. Practical use scenarios Setting action and bridge placement: Use the triangle ruler to align saddle positions and verify consistent string height relative to the fretboard during bridge installation or adjustment. Neck and fretwork alignment: Square the neck to the body, mark fret locations or check fret end alignment for filing and leveling operations. Pickup and hardware layout: Establish accurate pickup mounting positions and ensure hardware is parallel and centered during installation. What you will get A straightforward, workshopready measuring tool that supports common luthier tasks without complex setup. Easy to integrate into existing tool sets for both professional and hobby use.