Metric and imperial feeler gauge sets.
The feeler gauges feature 10 blades and are available in either metric or imperial.
The imperial blades are 0.0015-0.025 thousands of an inch and the metric blades are 0.05-0.08mm.
The imperial feeler gauges are perfect for working on your WaterMota engine or British Seagull outboard to set the correct gap on both spark plugs and contact sets. They are also useful for re-aligning your boats prop shaft to the gearbox.