Quickly identifies thread pitch or tpi. Measures both thread diameter and pitch. Drill and tap chart included.

  • Imperial Thread Sizes: 1/4" to 3/4" (10 to 28tpi).
  • Metric Thread Sizes: 2.5 to 22mm (0.45 to 2.5mm pitch).
  • Pipe Thread Sizes: 1/16" to 1/2" with 14 to 27tpi.
  • Spark Plug Thread Sizes: 10mm, 12mm, 14mm, 18mm.
Barcode # 9322159089714