```BACK TO HOW TO ORDER SETS``` `GAGE BLOCK HEADER PAGE` ```RECTANGULAR: 1mm Based Gage Blocks RC 88.MA1``` ```SQUARE 2MM Based Gage Blocks. S2S 88.MA1``` `1mm and 2mm Based Sets` ```Rectangular sets are offered as 1mm based sets: Rectangular 1mm Based sets are the most common Metric gage block sets. 1mm based means that most of the blocks in the set contain sizes that start close to 1mm in thickness. For example a set may contain the following sizes: 9 Blocks 1.001 thru 1.009mm in Steps of .001mm 9 Blocks 1.01 thru 1.09mm in Steps of .01mm 9 Blocks 1.1 thru 1.9mm in Steps of .1mm 9 Blocks 1mm thru 9mm in Steps of 1.0mm 9 Blocks 10mm thru 90mm in Steps of 10.0mm 28 of the 45 sizes in the set are 1mm plus a decimal fraction of a millimeter in length. Square sets are offered as 2mm based sets: 2mm Based sets are Metric sets that contain blocks that start close to 2mm in thickness. Below is the 2mm based equivalent of the set listed in the above example: 9 Blocks 2.001 thru 2.009mm in Steps of .001mm 9 Blocks 2.01 thru 2.09mm in Steps of .01mm 9 Blocks 2.1 thru 2.9mm in Steps of .1mm 9 Blocks 1mm thru 9mm in Steps of 1.0mm 9 Blocks 10mm thru 90mm in Steps of 10.0mm 28 of the 45 sizes in the set are 2mm plus a decimal fraction of a millimeter in length. Square style metric sets are only offered as 2mm base sets because of the larger surface area of the blocks. ``` ```BACK TO HOW TO ORDER SETS``` `GAGE BLOCK HEADER PAGE` `GB64` ©2018, Webber Gage Division, The L. S. Starrett Co, Westlake, Ohio , 44145 `INDEX`