Size 3.7 cm refers to the OUTSIDE width. I don't see how it can be useful for anyone in any situation. The 1 inch diameter is what people should use to decide if it will work with the dies they have.
πͺ Carbon Wooden Rethreading Drill by Drill America
3 Review
LEE PRECISION 90861 Carbide Factory
Tool set WMC Tools WMC-2462-5, 46 pcs., black
18 Review
Irwin Tools 9739 10mm 1.25 Inch
πͺ Durable DEWALT DW3986C Portable Blade 3 Pack for Efficient Cutting
10 Review
High-Performance Bosch BS80 6W Bandsaw - 80 Inch 4 Inch Blades
11 Review
Olson 80 Inch Blade FB14580DB-025
πͺ DEWALT DW3984C Portable Blade Set of 3-Pack