CLEAR as follows: This metal wheel marking gauge is designed with an engraved scale, measuring range: 120mm<br> <br> With stainless steel roller, which can glide against the circular edge of the Workplece Smooth Arc marking.<br> <br> EASY OPERATION: Trusquin wheels is easy to adjust, simple and firm adjustment with knurled knob<br> <br> Decorated: Thanks to the sturdy construction and ergonomic design, this woodworking tool will last as long as you need it to<br> <br> Unlike other gauges that deform easily or break, this is built gauge marking wheel to last a lifetime, thanks to its solid brass body and hardened steel tool.<br> <br> Range accuracy: 0-12cm plotting range, 0.2mm fine adjustment level Product material: aluminum alloy, brass, stainless steel<br> <br> Quantity delivered: 1 piece