OEMTOOLS 25226 Standard Ignition Spark Plug Gauge | Measure & Set Spark Plug Gaps from 0.025 In. (0.640 mm) to 0.045 In. (1.140

Test and properly gap the spark plugs for any car, truck, SUV, motorcycle, boat, lawnmower, golf cart, chainsaw, or anything else that uses a combustion motor for power. Improperly gapped spark plugs can be a common reason for older plugs to struggle or fail. Sometimes the solution is simply to regap the old plug, while other times you’ll need to reinstall a brand new, properly gapped plug to fix the engine issue. Remember, most modern cars use just a few spark plug gaps sizes, and you can usually buy spark plugs pre-gapped to these specifications. However, if you’re conscientious, it might be worth measuring the gaps on these pre-gapped plugs before installing them, just to be safe. Remember, before you perform any serious engine repair, including replacing or re-gapping spark plugs, first disconnect your battery lead to protect you from shock. Spark plug repair, replacement, and re-gapping are all relatively simple procedures, though some engines are certainly easier to work on than others. If you’re not comfortable doing the work on your own, professional mechanics do this sort of work every day. FULL SPECIFICATIONS: – Everything you need to gap your spark plugs to 6 common gap sizes – Measure: . 025” (. 64mm), . 03” (. 76mm), . 034” (. 86mm), . 035” (. 89mm), . 04” (1. 02mm), and . 045” (1. 14mm) – Measure and adjust with this one small tool