Spring dividers are the tool we reach for whenever a measurement needs to be exact, and this round leg 75mm pair earns its place on every bench for layout work, marking centres, and scribing clean circles and arcs.
The spring action keeps the legs under constant, even tension, so once you set your span with the adjustment nut, it holds. That means you can lock in a measurement once and repeat it across a whole batch, marking evenly spaced settings, or find a true centre point on a disc of metal without redoing your maths each time.
Both legs are hardened tool steel with tempered points, sharp enough to scribe a fine line into sterling silver sheet without skating, and durable enough to hold that edge through regular studio use. At 75mm (3 inches), the leg length keeps the tool nimble for smaller layout jobs. Some makers know this style of tool as engineers dividers, since the same basic design has been used for technical drawing and metalwork layout for generations.
We also reach for these dividers before cutting, marking exactly where to saw wax ring tubes so the cut lines up cleanly with the blade. Pair them with a saw frame to take the guesswork out of piercing wax.
