Chumia Adjustable Trammel Head Set

Create custom beam compass tool configurations with this adjustable trammel head set. Designed to attach to wooden beams, metal bars, and straightedges from 3/8" to 1-1/4" wide, these precision-machined marking points produce clear layout lines for circles, arcs, and curved design elements. Crafted from lightweight, corrosion-resistant aluminum alloy, the set features threaded locking knobs for smooth adjustment and stable holding power, making it versatile for woodworking, drafting, DIY, and educational use.