[Wide Application]: Suitable for designers, engineers, mechanics to measure the thickness of tappet clearances, spark plugs gaps, bearing clearances, piston ring gaps and other places. Taiwan 0.02-1.0Mm 0.02-2Mm 0.01-1.5Mm 16Pcs 20Pcs Thickness Plastic Plug Feeler Gauge Gap Filler I.1623674380 Mechanic's Thickness Gauge With Hanging Hole Uxcell Feeler Gauge 0.05-1.0mm 15 Blades Spring Steel Thickness Gauge Spark Plug Gap Feeler Gauge The plastic construction is perfect because it won't scratch sensitive surfaces like spark plugs or bearing surfaces. That little hanging hole makes it easy to store with your other tools without losing individual blades With a hanging hole, easy to save. uxcell 18 in 1 Plastic Feeler Gauge 0.05-1.5mm Thickness Gap Filler Measuring Tool for Gap Width Visit the uxcell Store 4.8 6 ratings $2919 Save 5% on any 2 qualifying items | Terms Suitable for designers, engineers, mechanics to measure the thickness of tappet clearances, spark plugs gaps, bearing clearances, piston ring gaps and other places.