Spider Centerline Finder

Search no more, THE best centerline finder tool in town ;) Features:3 in 1 tool: centerline for boards, centerline for circular pieces and edge markerUnique design with bearings - it makes use of the tool so much easier and smoothUnique design with integrated pen holder - after use, clamp your pen in and next time you won't spend ages finding itPractical hook to hang it on your tool wallThis is a centerline finder for square boards of up to 15 cm thickness and circular pieces between 40 and 75 mm. In addition it features and edge distance marker for 10, 15, 20, 25 and 30 mm. It also has integrated pen holder with double function:Holding pen while drawing centerlineHolding pen when tool is put awayHolder will work with standard pens of 7-8mm diameter. For final assembly you will need 2 bearings (22 mm external and 8 mm internal diameter) and it's recommended that you also use 4x M3x30 screws to strengthen the pencil holder - especially if you want to print numbers in different c