Small size and light weight, you can conveniently keep the in your pocket or tool bag Each gauge is clearly marked for convenient and easy reading 3pcs extremely handy 60 and 55 degree center gauges used for grinding and setting screw cutting tools Made of high quality stainless steel, this set of gauges are sturdy and durable The thread pitch gauge is great used to measure the pitch of a screw thread, Weight: 0.1763698096 pounds, Manufacturer: Mxtech