Precision Angle Block Set Solid Angle Plate Set, 30-60-90 Degree&45-45-90 Degree Machinist Tools Milling Ground Gauge Angle Gage Inspection Block Set (2 Pcs Triangle Angle Block)

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Precision Angle Block Set Solid Angle Plate Set, 30-60-90 Degree&45-45-90 Degree Machinist Tools Milling Ground Gauge Angle Gage Inspection Block Set (2 Pcs Triangle Angle Block)