Thickness Gap Metric Filler Feeler Gauge are tools used to measure gap widths . These gages are primarily used by engineers and machinists to measure the clearance between two parts that are in close proximity. The tools themselves consist of a set of thin metal lengths of steel with different thicknesses. Metal housing feeler gauge with 17 silver tone metal tapered blades of different thickness. Features metric measurements marked on each blade, easy to read. Flexible and blades can be stacked together when not in use. A tool used to measure gap widths, mostly used in engineering to measure the clearance between two parts. Features: 100% Brand new and high quality Feeler is one of the measuring instruments used for inspection clearance Blade thickness:  0.05, 0.06, 0.07, 0.08, 0.09, 0.10, 0.15, 0.20, 0.25, 0.30, 0.40, 0.50, 0.75, 1.00mm. Specification: Material : Carbon steel Color : Show as pictures Blade Length : Appr.10cm/4inch Width : Appr.1cm/0.4inch Quantity : 1Pcs one set Uses Measuring gap and clearance thickness Used in automotive engine tuning Helpful in mechanical maintenance Suitable for engineering inspections Ensures proper alignment and fitting Packages Include: 1 x Thickness Gap Metric Filler Feeler Gauge