Trammel Head Set Steel Adjustable Circle and Arc Marker

A steel trammel head set is a straightforward marking tool for setting out circles and arcs when an ordinary compass will not reach the size needed. Built for workshop layout work, it gives you an adjustable way to mark larger radii on wood, metal and composite materials.

Used across joinery, fabrication and general bench work, this type of tool suits anyone who needs repeatable marking before cutting, shaping or fitting. It is handy for making templates, setting out curved sections on sheet material, and marking larger circular work where accuracy matters. For DIY repairs, home projects or trade use, it helps when the same radius needs to be marked clearly and consistently across more than one piece.

The steel construction makes it better suited to regular use around the workshop, while the adjustable arms allow the marking size to be set to suit the job in hand. A secure locking mechanism helps keep the chosen setting in place as you work, which is useful when you want to avoid remarking or checking measurements repeatedly. Whether you are laying out curves on timber, marking metal for fabrication, or working with composite boards, the simple adjustable design gives steady control and practical flexibility. It is also easy to keep with other marking and measuring tools, making it a useful piece to have close by for repeated layout jobs.

Trammel head set specifications

• Application: Used for marking circles and arcs on a wide range of projects.
• Material: Steel construction for regular workshop, site or bench use.
• Suitable for: Wood, metal and composite materials.
• Adjustment: Adjustable arms allow different marking sizes to be set.
• Locking design: Secure mechanism helps maintain a consistent setting while marking.

A practical choice for regular marking, layout and template work.