Efficient, precise scribing tool for woodworking — compact, durable, and easy to use. Key benefits Fast, accurate setup: Quickly position the ruler/straightedge to the desired scale and lock it securely with brass screws for repeatable measurements. Tool-free adjustments: Large knurled (thumb) screws let you set and fine-tune parallel scribe spacing without extra tools, saving time on the job. Stable, repeatable markings: Designed for precise parallel scribing so your cuts, joints, and hardware placements line up consistently. Durable, corrosion-resistant construction: Rust-free main body made from aluminum alloy plus brass screws for long life and reliable performance. Portable and travel-ready: Lightweight positioning blocks and compact design make it easy to carry, store, and use outdoors or on-site. What it does Acts as a compass/parallel scribe for wood — move the ruler into position, lock the scale with brass screws, and use the needle to mark accurate parallel lines. Provides a solid reference for repetitive layout work, minimizing measurement errors and rework. Materials and performance Body: aluminum alloy (rust-free, lightweight, visually good finish) Fasteners: brass screws for secure locking and corrosion resistance Adjustment: knurled thumbscrews for quick, ergonomic operation Performance: stable clamping and repeatable scribing for precise joinery and layout tasks Practical use scenarios Cabinet and furniture assembly: Quickly mark consistent hinge mortises and edge offsets across multiple doors and panels for uniform results. On-site carpentry and framing: Take the tool to the jobsite to scribe parallel lines on boards and timbers without relying on stationary equipment. Workshop joinery and repetitive cuts: Set a precise offset once, lock it, and scribe multiple parts to the same dimension for fast, accurate production. Why you need it Reduces setup time and measurement errors during layout work Improves repeatability for batch work and multi-part assemblies Portable enough for fieldwork while robust enough for regular shop use Care and compatibility notes Designed to work with a standard ruler or straightedge positioned and clamped by the tool. Wipe clean after use; avoid prolonged exposure to wet conditions to preserve finish and moving parts. Compact, reliable, and engineered for accurate parallel scribing — ideal for woodworking enthusiasts and professionals who need portable precision.