Quick, secure scale setting Brass screws let you slide the ruler to the desired position and lock it quickly. Saves time when switching layouts and keeps the setting stable during marking. Precise parallel scribing Knurled screws allow fine adjustment for accurate, repeatable parallel lines. Maintain consistent spacing for joinery and veneers without re-measuring. Durable, corrosion-resistant construction Aluminum-alloy frame for long service life and a rust-free main body that keeps the tool looking and performing well over time. Portable and jobsite-ready Compact, lightweight positioning blocks make it easy to carry and store. Ideal for field work where space and weight matter. What this tool does for you Speeds layout by combining a quick-locking ruler with precision adjustment so you can mark parallel lines, circles, arcs and angles without repeatedly measuring. Reduces layout errors by holding settings securely and enabling fine, controlled scribing. Lasts through regular shop and site use thanks to corrosion-resistant materials and solid construction. Key attributes Function: marking gauge/compass scribe for parallel lines, circles, arcs and angles. Adjustment: brass locking screws for fast positioning; knurled screws for precise fine-tuning. Materials: aluminum-alloy body and rust-resistant main components. Size/portability: compact and lightweight positioning blocks designed for easy transport and storage. Performance: accurate, repeatable scribing and reliable locking for consistent results. Practical applications Joinery layout: quickly scribe parallel lines for tenons, mortises, dovetails and edge banding without repeated measuring. Furniture and cabinet work: mark arcs and circles for legs, cutouts and decorative profiles with consistent radii. On-site carpentry and repairs: portable precision for fitting trim, marking offsets and transferring measurements in the workshop or at a jobsite. What makes it stand out Combines fast, positive locking with fine adjustment capability so you get both speed and accuracy. Built from corrosion-resistant materials to withstand frequent use and outdoor conditions. Small, lightweight design that fits easily in a tool bag, making precise marking portable and convenient. Included/visible functions Ruler with adjustable scale and quick brass locks. Knurled adjustment screws for precise parallel scribing. Positioning blocks for compact, transportable use. Use this marking gauge when you need dependable, repeatable layout work for woodworking projects, furniture making, or site repairs.