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GENERAL CATALOG
Rectangular Steel - Metric System
Gage Block Sets in Case
RS 88.MA1
1mm Based Sets
Catalog
No.
 Grade 
 Blocks 
in Set
 Measuring Range
Blocks included in Set
RS 45.MA1
0
45
3.0 thru 450mm (Steps of .001mm)
2.0 thru 450mm (Steps of .01mm)
1.0 thru 450mm (Steps of .1mm)
   9 Blocks 1.001 thru 1.009 (Steps of .001mm)
   9 Blocks 1.01 thru 1.09mm (Steps of .01mm)
   9 Blocks 1.1 thru 1.9mm (Steps of .1mm)
   9 Blocks 1 thru 9mm (Steps of 1mm)
   9 Blocks 10 thru 90mm (Steps of 10mm)
RS 88.MA1
0
88
3.0 thru 450mm (Steps of .0005mm)
2.0 thru 450mm (Steps of .001mm)
1.0 thru 450mm (Steps of .01mm)
1.0 thru 450mm (Steps of .1mm)
   1 Block  1.0005mm
   9 Blocks 1.001 thru 1.009 (Steps of .001mm)
 49 Blocks 1.01 thru 1.49mm (Steps of .01mm)
 19 Blocks 0.5 thru 9.5mm (Steps of .5mm)
 10 Blocks 10 thru 100mm (Steps of 10mm)
RS 112.MA1
0
112
3.0 thru 250mm (Steps of .0005mm)
2.0 thru 250mm (Steps of .001mm)
1.0 thru 250mm (Steps of .01mm)
1.0 thru 250mm (Steps of .1mm)
   1 Block  1.0005mm
   9 Blocks 1.001 thru 1.009 (Steps of .001mm)
 49 Blocks 1.01 thru 1.49mm (Steps of .01mm)
 49 Blocks 0.5 thru 24.5mm (Steps of .5mm)
   4 Blocks 25 thru 100mm (Steps of 25mm)
RS 9.MA1
0
9
4.0 thru 61mm (Steps of .25mm)
2.0 thru 61mm (Steps of .5mm)
1.0 thru 61mm (Steps of 1.0mm)
   3 Blocks 1.0mm, 2.0mm, and 2.25mm
   3 Blocks 2.5mm, 3.0mm, and 5.0mm
   3 Blocks 10.0mm, 15.0mm, and 25.0mm
.
Economy Grade Gage Block Sets
± 1.25µm
Made in China
Catalog
No.
 Grade 
 Blocks 
in Set

							
 Blocks included in Set
RS 88.MB
±1.25µm
88
Set is made in China, but is calibrated
by Webber Gage in Cleveland, OH.
The calibration of this set is NVLAP®
accredited to ISO 17025.
  1 Block 1.0005mm
 9 Blocks 1.001 thru 1.009 (Steps of .001mm) 
49 Blocks 1.01 thru 1.49mm (Steps of .01mm) 
19 Blocks 0.5 thru 9.5mm (Steps of .5mm) 
10 Blocks 10 thru 100mm (Steps of 10mm))
RS 88.MW ±1.25µm
88
Set is made AND calibrated in China.
The calibration is NOT accredited.
  Same as above set
.
.
.
.
.
RS 112.MB ±1.25µm
112
Set is made in China, but is calibrated by Webber Gage in Cleveland, OH. The calibration of this set is NVLAP® accredited to ISO 17025.
  1 Block 1.0005mm 
 9 Blocks 1.001 thru 1.009 (Steps of .001mm) 
49 Blocks 1.01 thru 1.49mm (Steps of .01mm) 
49 Blocks 0.5 thru 24.5mm (Steps of .5mm) 
 4 Blocks 25 thru 100mm (Steps of 25mm)
RS112.MW ±1.25µm
112
Set is made AND calibrated in China. The calibration is NOT accredited. Same as above set
Micrometer Checking Set
Catalog
No.
 Grade 
 Blocks 
in Set
 Measuring Range
 Blocks included in Set
RS 10.MA
AS1
10
 Used to check Travel of 25mm micrometer    
 1 Block each:  2.5,  5.1,  7.7,  10.3,
 12.9, 15.0, 17.6, 20.2, 22.8, and 25mm
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©2008, Webber Gage Division, The L. S. Starrett Co, Cleveland, Ohio , 44145
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