Specifications:  Product Name : Precision Router Table Set Up Bars Measuring Range : 0.125"-0.5" Scope of Application : Woodworking Material : Aluminum alloy Size : 1/8", 3/16", 1/4", 5/16", 3/8", 7/16", 1/2" Quantity : 7 Pcs × Quick Router Table Set    Features:  - Set Up Bars: 1/8", 3/16", 1/4", 5/16", 3/8", 7/16" & 1/2".  - The step on the top edge of each bar acts as a gauge to test the depth of your completed cuts.  - Bars are made from a soft aluminum which is designed to prevent damage to your router bit or saw blade if contact is made during setup.  - Unique design straddles the Router Bit or saw blade to allow for more precise height adjustment.  - Step on the top edge of each setup bar acts as a gauge to test the depth of your completed cuts.  - Step on the end of each setup bar used to test the fence depth of a table saw blade or router bit.  - Made from a soft aluminum designed to prevent damage to your Router Bit or saw blade if contact is made during set up.     Product Description  Set Up Bars Come In A Portable Case With 1/8", 3/16", 1/4", 5/16", 3/8", 7/16" & 1/2" Bars And Can Be Used To Make Adjustments To Router Tables, Shapers And Table Saws. The Step On The Top Edge Of Each Bar Acts As A Gauge To Test The Depth Of Your Completed Cuts, While The Stop On The End Of Each Bar Is Used To Test The Fence Depth Of The Table Saw Blade Or Router Bit. Bars Are Made From A Soft Aluminum Which Is Designed To Prevent Damage To Your Router Bit Or Saw Blade If Contact Is Made During Setup.    From the Manufacturer  Our new Precision Router TableSetup Bars make adjustments to router tables, shapers and table saws very simple and very precise. Set includes 7 setup bars makes it easy for woodworkers to locate the correct bar for their application. Sizes: 1/8-Inch, 3/16-Inch, 1/4-Inch, 5/16-Inch, 3/8-Inch, 7/16-Inch, 1/2-Inch.    Package Included: 7 × Quick Router Table