Gauges for trapezoidal tread. Tolerances
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Stands and supports for measuring heads. Specifications
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Gages for buttress thread. Tolerances
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Measuring machines for checking fine pitch spur gears. Types. Basic dimensions, standards of accuracy
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Gauges for triangular thread of internal-external upset drill pipes with coup lings. Types, basic dimensions and tolerances
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Gauges for triangular thread for tubing pipes with couplings. Types. Basic dimensions and tolerances
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Gauges for triangular thread for casing pipes with couplings. Types. Basic dimensions and tolerances
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Inside micrometers. Specifications
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Surface plates and face-plates. Specifications
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Mechanical quadrants with level. Specifications
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Measuring tips of apparatus for linear measurements. Specifications
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Gauge callipers with reading arrangement. Specifications
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