[PRECISION ANGLE CHECK] This 3 piece fishtail center gauge set helps quickly compare and verify thread angles on workpieces making setup and alignment easier for CNC lathe users and machinists. [STAINLESS STEEL BUILD] Made of stainless steel these thread gauges offer dependable strength and lasting use while maintaining a clean surface that suits frequent workshop measuring tasks. [THREE THREAD STYLES] Includes USA 60 degree ISO 60 degree and Whit 55 degree center gauges giving practical coverage for common thread identification and comparison in and general lathe work. [CLEAR EASY TO READ SCALE] Each gauge features clearly marked scales that are simple to read during use helping improve measuring convenience when checking screw thread pitch angle and tool positioning. [COMPACT PORTABLE SET] Small in size and light in weight at about 7 g this gauge tool set fits easily in a pocket or tool bag making it convenient to carry between bench work and machine setups.