A quick handy tool to check your modules or when designing your next rig or for those building modules.14hp and can be mounted in your rack Features · mm ruler· Hp ruler measure up to 24hp · U ruler measure up to 3U · U measurements up to 21U· Eurorack module high with midpoint · Eurorack PCB hight with midpoint · Mounting hole spacing and distance from each other in all directions· Rail to rail and edge to rail· Common Hp sizes· Common Case sizes· Common Skiff sizes· M2.5 to M6 holes· Holes from 0.5mm to 6.4mm· Trace or line thickness from 0.1mm to 6.5mm on edge of board for measuring· Text size 0.5mm to 4.00mm· Text thickness 0.1mm to 0.5mm· AWG wire sizing holes 28AWG to 8AWG · AWG wire sizing holes in corresponding mm 0.32mm to 3.26mm· Corner fillet 1mm to 5mm· Copper pad around holes size 0.125mm to 1.75mm · All measurements in mm's · Graphics: Black, white and real gold · Dimensions: 70mm Wide · 14Hp · Module weight: 27g · Power consumptionDoes not require power