- Engineers trammel heads for scribing arc's and circles
- Used mainly for marking out sheet work
- Rigid cast iron bodies and steel points
- Unlimited circle size
- 30mm maximum rectangular bar sizes
- Inclinable points on the larger size set
Pairs of trammel heads for the engineer. Clamped onto a rectangular bar and used to scribe arcs or circles of any size when marking out sheet work. The bodies are in rigid cast iron with steel points and clamps. Available in 30mm maximum sized rectangular bar stock. The points can be inclined for small work on the larger size.