All stainless steel
Blades are approximately 1/2" wide and 3 1/4" long
compared to the 30° needed with standard spanners
and we think they are a great knife for the farmer
Moore & Wright Imperial Screw Pitch Gauge Eclipse All stainless steelShop now for Moore & Wright Imperial Screw Pitch Gauge. Oz General Store Australia's online store! Accurately milled steel blades Designed to check both internal and external thread forms Marked with nominal size on each blade All blades fixed in a steel sleeve Screw cutting gauge included 55 Degrees Screw Pitch Whitworth Number of Blades 28 Threads per mm 4, 4. 5, 5, 6, 7, 8, 9, 10, 11, 12, 14, 16, 18, 19, 20, 22, 24, 25, 26, 28, 30, 32, 36, 40, 48,