Performance Tool Spark Plug Gap Gauge - W80536 Part #: W80536 Line: PFM Performance Tool Spark Plug Gap Gauge Limited Lifetime Warranty Color: Chrome Material: Steel Number Of Blades: 1 Case Included: No Range (in): 0.020 To 0.100 Inch Increments (in): 0.001 Inch Range (mm): 0.5mm To 2.5mm Magnetic Base Included: No Show More Show Less