Specification: Product name: Thread gauge Material: 45 Cold-rolled steel Color: Silver Open Size: Approx. 11x5.5cm/4.33"x2.16" Quantity: 52pcs Features: -One combination thread gauge model. -One kind of a pitch, the pitch multiple stacked up special measuring tools, thread pitch for inspection. -Can be used for measuring the metric and inch screw thread. The blade can also be used to measure the AF thread per inch of thread.
Instructions: 1) measure the thread pitch The thread Group as a template cards toothed steel thread in the measured workpiece, if not close together, the other for one, until snug. Then mark on the thread size model is the measured workpiece thread pitch. 2) measuring the tooth-shaped corner The thread pitch and the measured workpiece thread model on the same thread on top of the test, then check Talia contact, if there is no gap translucent, tooth-shaped angle measured thread is correct; if there is uneven light transmission gap phenomenon, it shows the measured thread tooth shape is not accurate.
