Product DescriptionDo you still setup your table saw or router with a tape measure or ruler?Do you always trouble with find a better way to setup precisely?These height gauge blocks are a way better way to go. That's superb!Features:Accurate Measurement: Our brass set up gauge blocks are all 3 inches long, respectively: 1/8", 3/16",1/4", 3/8", and 1/2" squared.Engraving: The brass gauge blocks are all marked with engraving, which is easy to read and accurate.Easy to Use: Height measuring devices of different sizes, can easily set the height of the fence and the cutter according to the needs.Packing Tightly: Includes an iron case with Eva lining, so it will be more tightly protected during transportation.Useful Accessories: Useful parts for router and table saw accessories.Specifications:Material: brassStorage case material: iron+eva liningColor: goldHeight gauge size(approx): 3inch(L), respectively: 1/8", 3/16", 1/4", 3/8" and 1/2" square.Accuracy: ±0.03mm(less than 2 mils=less than 0.05mm)Quantity: 5pcsPackage List:5 * height gauge1 * storage caseNotes:- Please allow 0‑1 inch error due to manual measurement. Thanks for your understanding.- Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard.