Towever Wheel/Stud or Rim Bolt Gauge PCD Measuring Tool PCD Ruler - 4 5 6 8 Holes Lug Bolt Pattern Gauge Works with Most 4, 5, 6 and 8 lug Wheels, Provides Inch and Metric Dimensions. 4-Lug ( 4.5" & 100mm to 140mm) 5-Lug (4.25" to 6.5" & 100mm to 150mm) 6-Lug (4.5" to 5.5" & 135mm) 8-Lug (6.5" & 170mm to 210mm)