Features: Material: Made of quality stainless steel, this set of gauges are sturdy Clear Scale: Each gauge is clearly marked for convenient and easy reading Screw Pitch Gauge Function: The thread pitch gauge is great used to measure the pitch of a screw thread 3pcs Center Gauges: 3pcs extremely handy 60 and 55 degree center gauges used for grinding and setting screw cutting tools Portable: Small size and light weight, you can conveniently keep the in your pocket or tool bag Notice: 1.Actual color may be slightly different from the image due to different light effect 2.Please allow 1-3cm deviation due to manual measurement Material: Stainless steel Pitch Gauge Measuring Range: 24 leaves inmetric, ranging 0.25 to 6mm: 0.25 / 0.3 / 0.35 / 0.4 / 0.45 / 0.5 / 0.6 / 0.7 / 0.75 / 0.8 / 0.9 / 1.0 / 1.25 / 1.5 / 1.75 / 2.0 / 2.5 / 3.0 / 3.5 / 4.0 / 4.5 / 5.0 / 5.5 / 6.00 28 leaves in imperial, ranging 4 to 62: 4 / 4.5 / 5 / 6 / 7 / 8 / 9 / 10 / 11 / 12 / 13 / 14 / 16 / 18 / 19 / 20 / 22 / 24 / 25 / 26 / 30 / 28 / 32 / 36 / 40 / 48 / 60 /62 Weight: 84g(approx.) Package Includes: 1 x Thread Pitch Gauge 2 x Center Gauges (60) 1 x Center Gauge (55) Package List: 4Pcs Screw Thread Pitch Cutting Gauge Tool Set