Excellent materialMade of aluminum alloy, stainless steel and brass, practical, wear-resistant and long service life. Linear ARC DUAL-PURPOSEThis is a linear arc dual-purpose scriber.Dual function wheel marking gauge can meet both linear and curved requirements. It can be used as a depth gauge too. Easy to Use and MeasureThis brass wheel marking gauge features an engraved graduated ruler, which shows both metric and imperial measurement values.High accuracy, more professional. ANTI-ROLL DESIGN Fitted with sturdy knobs keep the gauge from rolling around.stencil new upgraded large-diameter clip pen, refill, needle, pencil, etc. are applicable. LARGE OF SCOPE OF APPLICATION It is a multifunctional and practical woodworking tool.Can be used in a variety of materials,Ceramic, iron, acrylic, wood, glass,etc.Make your job easier.