Moore And Wright Screw Pitch Gauge S.I. METRIC & WHITWORTH No 804 tb85l
	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 - 60 Degrees Screw Pitches - SI Metric & Whitworth 49 Blades - Metric 0.4 - 7.0 Threads per mm Whitworth 4 - 60 Threads per mm Metric: 0.4, 0.5, 0.7, 0.75, 0.8, 0.9, 1.0, 1.25, 1.50, 1.75, 2.0, 2.5, 3.0, 3.5, 4.0, 4.5, 5.0, 5.5, 6.0, 6.5, 7.0 Imperial: 4, 4.5, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 16, 18, 19, 20, 22, 24, 25, 26, 28, 30, 32, 36, 40, 48, 60 Note: SI (System International) metric blades should not be used to check ISO (International Standards Organisation) metric threads due to interference of the thread forms; but ISO metric blades can be used to check SI metric threads.