ChgImposs Screw Thread Pitch Cutting Gauge Tool Set, Stainless Steel Centre Gage with 55 Degree Inch System & 60 Metric

Used to measure the pitch of the thread and the tooth-shaped corner It sets 4pcs centre gage 55 Degree Inch System & 60 Degree Metric System, 52 pcs Center Gage use to grind and position thread cutting tool on a lathe. Typically used to check the thread size determination is correct All 52 pcs was made by stainless steel, not easy to rust. Ensure the accuracy of measurement. Package Include: 1 x 52 Blade thread gauge; 1 x ISO Metric 60°centering gauge thread gauge Tool; 1 x English Wyeth 55°centering gauge thread gauge Tool; 1 x American Standard 60°centering gauge thread gauge Tool