可调式螺纹环规校准是美国特有的AGD螺纹环规校准的方式，采用set plug 来进行校准，而set plug又有多种形式，期待您的咨询。
Thread Ring gages are AGD – American Gage Design

GRG-001-3A AGD Style Thread Ring Gage, Class 3A "Go" Ring 0-80 $137.00

GRG-002-3A AGD Style Thread Ring Gage, Class 3A "Go" Ring 1-64 $128.00

GRG-003-3A AGD Style Thread Ring Gage, Class 3A "Go" Ring 1-72 $128.00

GRG-004-3A AGD Style Thread Ring Gage, Class 3A "Go" Ring 2-56 $124.00

GRG-005-3A AGD Style Thread Ring Gage, Class 3A "Go" Ring 2-64 $124.00

GRG-006-3A AGD Style Thread Ring Gage, Class 3A "Go" Ring 3-48 $124.00

GRG-007-3A AGD Style Thread Ring Gage, Class 3A "Go" Ring 3-56 $124.00

GRG-008-3A AGD Style Thread Ring Gage, Class 3A "Go" Ring 4-40 $110.00

GRG-009-3A AGD Style Thread Ring Gage, Class 3A "Go" Ring 4-48 $110.00

GRG-010-3A AGD Style Thread Ring Gage, Class 3A "Go" Ring 5-40 $98.00

GRG-011-3A AGD Style Thread Ring Gage, Class 3A "Go" Ring 5-44 $101.00

GRG-012-3A AGD Style Thread Ring Gage, Class 3A "Go" Ring 6-32 $98.00

GRG-013-3A AGD Style Thread Ring Gage, Class 3A "Go" Ring 6-40 $98.00

GRG-014-3A AGD Style Thread Ring Gage, Class 3A "Go" Ring 8-32 $95.00

GRG-015-3A AGD Style Thread Ring Gage, Class 3A "Go" Ring 8-36 $95.00

GRG-016-3A AGD Style Thread Ring Gage, Class 3A "Go" Ring 10-24 $95.00

GRG-017-3A AGD Style Thread Ring Gage, Class 3A "Go" Ring 10-32 $95.00

GRG-018-3A AGD Style Thread Ring Gage, Class 3A "Go" Ring 12-24 $95.00

GRG-019-3A AGD Style Thread Ring Gage, Class 3A "Go" Ring 12-28 $95.00

GRG-020-3A AGD Style Thread Ring Gage, Class 3A "Go" Ring 1/4"-20 $92.00

GRG-021-3A AGD Style Thread Ring Gage, Class 3A "Go" Ring 1/4"-28 $92.00

GRG-022-3A AGD Style Thread Ring Gage, Class 3A "Go" Ring 1/4"-32 $121.00

GRG-023-3A AGD Style Thread Ring Gage, Class 3A "Go" Ring 5/16"-18 $92.00

GRG-024-3A AGD Style Thread Ring Gage, Class 3A "Go" Ring 5/16"-32 $121.00

GRG-025-3A AGD Style Thread Ring Gage, Class 3A "Go" Ring 3/8"-16 $98.00

GRG-026-3A AGD Style Thread Ring Gage, Class 3A "Go" Ring 3/8"-24 $98.00

GRG-027-3A AGD Style Thread Ring Gage, Class 3A "Go" Ring 3/8"-32 $128.00

GRG-028-3A AGD Style Thread Ring Gage, Class 3A "Go" Ring 7/16"-14 $98.00

GRG-029-3A AGD Style Thread Ring Gage, Class 3A "Go" Ring 7/16"-20 $98.00

GRG-031-3A AGD Style Thread Ring Gage, Class 3A "Go" Ring 1/2"-13 $105.00

GRG-032-3A AGD Style Thread Ring Gage, Class 3A "Go" Ring 1/2"-20 $105.00

GRG-033-3A AGD Style Thread Ring Gage, Class 3A "Go" Ring 1/2"-28 $128.00

GRG-034-3A AGD Style Thread Ring Gage, Class 3A "Go" Ring 9/16"-12 $121.00

GRG-035-3A AGD Style Thread Ring Gage, Class 3A "Go" Ring 9/16"-18 $121.00

GRG-036-3A AGD Style Thread Ring Gage, Class 3A "Go" Ring 9/16"-24 $128.00

GRG-037-3A AGD Style Thread Ring Gage, Class 3A "Go" Ring 5/8"-11 $121.00

GRG-038-3A AGD Style Thread Ring Gage, Class 3A "Go" Ring 5/8"-18 $121.00

GRG-040-3A AGD Style Thread Ring Gage, Class 3A "Go" Ring 3/4"-10 $151.00

GRG-041-3A AGD Style Thread Ring Gage, Class 3A "Go" Ring 3/4"-16 $151.00

GRG-042-3A AGD Style Thread Ring Gage, Class 3A "Go" Ring 3/4"-24 $179.00

GRG-043-3A AGD Style Thread Ring Gage, Class 3A "Go" Ring 13/16"-20 $183.00

GRG-044-3A AGD Style Thread Ring Gage, Class 3A "Go" Ring 7/8"-9 $162.00

GRG-045-3A AGD Style Thread Ring Gage, Class 3A "Go" Ring 7/8"-20 $190.00

GRG-047-3A AGD Style Thread Ring Gage, Class 3A "Go" Ring 1-8 $190.00

GRG-048-3A AGD Style Thread Ring Gage, Class 3A "Go" Ring 1-12 $190.00

GRG-049-3A AGD Style Thread Ring Gage, Class 3A "Go" Ring 1-14 $190.00

GRG-050-3A AGD Style Thread Ring Gage, Class 3A "Go" Ring 1-20 $225.00

GRG-051-3A AGD Style Thread Ring Gage, Class 3A "Go" Ring 1-1/8"-7 $249.00

GRG-052-3A AGD Style Thread Ring Gage, Class 3A "Go" Ring 1-1/8"-12 $249.00

GRG-053-3A AGD Style Thread Ring Gage, Class 3A "Go" Ring 1-1/8"-18 $254.00

GRG-054-3A AGD Style Thread Ring Gage, Class 3A "Go" Ring 1-1/4"-7 $266.00

GRG-055-3A AGD Style Thread Ring Gage, Class 3A "Go" Ring 1-1/4"-12 $266.00

GRG-056-3A AGD Style Thread Ring Gage, Class 3A "Go" Ring 1-1/4"-18 $257.00

GRG-057-3A AGD Style Thread Ring Gage, Class 3A "Go" Ring 1-3/8"-6 $266.00

GRG-058-3A AGD Style Thread Ring Gage, Class 3A "Go" Ring 1-3/8"-12 $266.00

GRG-059-3A AGD Style Thread Ring Gage, Class 3A "Go" Ring 1-1/2"-6 $283.00

GRG-060-3A AGD Style Thread Ring Gage, Class 3A "Go" Ring 1-1/2"-12 $283.00

GRG-061-3A AGD Style Thread Ring Gage, Class 3A "Go" Ring 1-1/2"-18 $300.00