卡尺檢定專用量塊是一種長度計量基準，主要用于卡尺示值誤差的檢定，精度分為2、3級。套別套塊數(shù)級別尺寸系列 間隔 塊數(shù) 1120,1,2,310.20.20,41.2￣1251.2,81.5,101.2,121.5121.8,191.8,201.5,291.8260,1,2,3101.2,200,291.5￣6375,451.8,490360,1,2,3201.2，400，581.5 750，901.8，990460,1,2,341.2,81.5,121.8￣610,20,20560,1,2,351.2,121.5,191.8￣610,20,20630,1,2,3101.2,201.5,291.8￣3