28Pcs Blades Whitworth UK 55 Degree Screw Pitch Thread Measuring Gauge Tool

Description: 28Pcs Bla des Whitworth UK 55 Degree Screw Pit ch Thread Measuring Gauge Tool 1. Whitworth UK 55 thread measuring gauge, one combination thread gauge model. 2. It is one kind of a pit ch, the pit ch multiple stacked up special measuring tools, thread pit ch for inspection. 3. Using rotary switch, can be freely adjusted 4. Quenching processing, strong hardness 5. Measuring thread and external thread tooth pit ch Specification: Type: Thread gauge Material: Stainless Steel Color: As picture shows Blades: 28Pcs Size: approx. 66x13mm/2.6x0.5" Measuring ran ge: Whitworth UK 55: 4G, 4-1/2G, 5G, 6G, 7G, 8G, 9G, 10G, 11G, 12G, 13G, 14G, 16G, 18G, 19G, 20G, 22G, 24G, 25G, 26G, 28G, 30G, 32G, 36G, 40G, 48G, 60G, 62G Package included: 1 x Thread Gauge Instructions: 1) Measure the thread pit ch The thread Pil ot Group as a template cards toothed steel thread in the measured work piece, if not close together, the other for one, until snug. Then mark on the thread size model is the measured workpiece thread pit ch. 2) Measuring the tooth-shaped corner The thread pit ch and the measured workpiece thread model on the same thread on top of the test, then check 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. More Details: