MITUTOYO 611856-551 516 INDIVIDUAL METRIC GAGE BLOCK, RECTANGULAR SHAPE, 22.8 MM L, STEEL Mitutoyo offers a complete selection of gage blocks available in a choice of rectangular or square, metric or inch and steel or CERA (ceramic) types If using only one length repeatedly, it is good practice to purchase discrete gage blocks Each gage block is supplied with a certificate of inspection Provided with inspection certificate