公制螺紋塞規耐磨特殊量具用鋼，淬火并打磨NO和NOGO清楚的標明在塞規的兩端公差為H6符合德國DIN7162質量生產標準 型號大小公差KT5-220-374M1.0x0.256HKT5-220-375M1.2x0.256HKT5-220-289M1.4x0.306HKT5-220-290M1.6x0.356HKT5-220-46M2.0x0.406HKT5-220-47M2.5x0.456HKT5-220-48M3.0x0.506HKT5-220-378M3.5×0.606HKT5-220-49M4.0×0.706HKT5-220-50M5.0×0.806HKT5-220-51M6.0×1.006HKT5-220-39M7.0×1.006HKT5-220-52M8.0×1.256HKT5-220-40M9.0×1.256HKT5-220-53M10.0×1.506HKT5-220-41M11.0×1.506HKT5-220-54M12.0×1.756HKT5-220-42M14.0×2.006HKT5-220-43M16.0×2.006HKT5-220-55M18.0×2.506HKT5-220-56M20.0×2.506HKT5-220-65M22.0×2.506HKT5-220-407M24.0×3.006HKT5-220-408M27.0×3.006HKT5-220-409M30.0×3.506HKT5-220-410M33.0×3.506HKT5-220-411M36.0×4.006HKT5-220-412M39.0×4.006HKT5-220-413M42.0×4.506HKT5-220-414M45.0×4.506HKT5-220-415M48.0×5.006HKT5-220-416M52.0×5.006HKT5-220-417M56.0×5.506HKT5-220-418M60.0×5.506HKT5-220-419M64.0×6.006HKT5-220-420M68.0×6.006H **圖片只做供參，以實物為準.