BGS 74248 Screwpitch Gauge and Thread Template Inch Sizes 1/4 2"

useful helper that should not be missing in any toolbox | for fast and accurate determination of dimensions of screws, bolts, drills, washers and other round materials multifunctional tool in manageable size and flat card format | for use in the workshop for vehicle repairs where corresponding sizes must be determined exactly thread size on screws and bolts: no. 5 - 6 - 8 - 10 - 12 and 1/4 - 5/16 - 3/8 - 7/16 - 1/2 - 9/16 - 5/8 - 3/4" | thread pitches on screws and bolts: 10 - 11 - 12 - 13 - 14 - 16 - 18 - 20 - 24 - 32 - 40 diameter of drills: 0.024 - 0.03 - 0.035 - 0.025 - 0.0312 - 0.0375 - 0.05 - 0.0625 - 0.078 - 0.109 - 0.125 - 0.14 - 0.172 - 0.1875 - 0.203 - 0.234 - 0.25" | inner diameter of holes and outer diameter of round materials: 1/64 - 1/8-3/16 - 1/4 - 5/16 - 3/8 - 7/16 - 1/2" (1/64" subdivision) measurement of lengths: 1/32" - 2" | angle measurement: 60 - 90 - 118 - 135°