Kreg Precision Router Table Setup Bars Bedroom Bathroom Door Knob the quartz composite is heat Unbranded the quartz composite is heat safe up to 500°F 742 Product Weight (lb Concave step on the bottom of set up bar straddles your router bit or saw blade to allow for precise height adjustment Step on the top edge of set up bar acts as a gauge to test depth of your completed cuts Step on the end of each set up bar can be used to set the distance from table saw blade or router bit to the fence Made from aluminum to prevent damage to router bit in case they make contact during setup 7 bars with sizes of: 1 8 Sub Brand Precision Router Table Setup Bars Series Name Router Table Setup Bars Type Router edge guide Package Quantity 1 Warranty Limited lifetime CA Residents: Prop 65 Warning(s) No