1、Made of high quality stainless steel, this set of gauges are sturdy and durable 2、Each gauge is clearly marked for convenient and easy reading 3、The thread pitch gauge is great used to measure the pitch of a screw thread 4、3pcs extremely handy 60 and 55 degree center gauges used for grinding and setting screw cutting tools 5、Small size and light weight, you can conveniently keep the in your pocket or tool bag Features: Made of high quality stainless steel, this set of gauges are sturdy and durable. Each gauge is clearly marked for convenient and easy reading. The thread pitch gauge is great used to measure the pitch of a screw thread. 3pcs extremely handy 60 and 55 degree center gauges used for grinding and setting screw cutting tools. Small size and light weight, you can conveniently keep the in your pocket or tool bag. Specifications: 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°)