Product Description: Material: Stainless Steel Optional Style: USA60 Degree Screw Thread (#1), ISO60 Degree Screw Thread (#2), 55 degree screw thread (#3) Weight: approx. 7g/0.2oz Package List:2*Center Gauge STAINLESS STEEL CENTER GAUGE: This center gauge is made of high quality stainless steel, featured with high hardness and durability, wear-resistant use, long service life FINE WORKING GAUGE: The center gauge is clearly marked for convenient and easy reading. Very handy for cutting tools for edge grinding and hardening notching and fixing screws CONVENIENT THREAD PITCH GAUGE: The thread pitch gauge is widely used to measure the pitch of a screw thread. Suitable for a variety of occasions, can provide you with much convenience VERSATILE SCREW THREAD GAUGE: This stainless steel thread pitch gauge is suitable for quick comparison of the thread angle of the work piece. Precision manufacturing, standard size, stable and reliable PORTABLE FISHTAIL GAUGE: Small in size and lightweight, you can easily keep the wire cutting angle gauge in your pocket or tool bag. Excellent performance at a competitive price