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Rectangular Steel - English System
Gage Block Sets in Case
RS 81.A1
Catalog
No.
 Grade 
 Blocks 
in Set
 Measuring Range
Blocks included in Set
RS 81.A1
0
81
 .100 to 12.000 in Steps of .001
 .200 to 12.000 in Steps of .0001
   9 Blocks .1001 thru .1009 (Steps of .0001)
 49 Blocks .101 thru .149 (Steps of .001)
 19 Blocks .050 thru .950 (Steps of .050)
   4 Blocks 1.000 thru 4.000 (Steps of 1")
RS 88.A1
0
88
 .100 to 12.000 in Steps of .001
 .200 to 12.000 in Steps of .0001
 .300 to 12.000 in Steps of .000025
 1/16 to 12.000 in Steps of 1/64
 Same as in RS 81. Set, Plus
  3 Blocks .100025, .10005, .100075
  4 Blocks 1/16, 5/64, 3/32, 7/64
RS 38.A1
0
38
 .100 to 4.000 in Steps of .001
 .150 to 4.000 in Steps of .0001
 .200 to 4.000 in Steps of .00005
  1 Block   .05005
  9 Blocks .0501 thru .0509 (Steps of .0001)
  9 Blocks .051 thru .059 (Steps of .001)
11 Blocks .050 thru .150 (Steps of .010)
  4 Blocks  .200 thru .500 (Steps of .100)
  2 Blocks  1.000 and 2.000
  2 Blocks  .050 croblox® Wear Blocks
RS 34.A1
0
34
 .200 to 8.000 in Steps of .001
 .300 to 8.000 in Steps of .0001
  9 Blocks .1001 thru .1009 (Steps of .0001)
  9 Blocks .101 thru .109 (Steps of .001)
  9 Blocks .110 thru .190 (Steps of .010)
  3 Blocks .100 thru .300 (Steps of .100)
  1 Block  .500
  3 Blocks  1.000, 2.000 and 4.000
RS 28.A1
0
28
 .020 to .240 in Steps of .001
 .040 to .240 in Steps of .0001
 .060 to .240 in Steps of .00005
  1 Block .02005
  9 Blocks .0201 thru .0209 (Steps of .0001)
  9 Blocks .021 thru .029 (Steps of .001)
  9 Blocks .010 thru .090 (Steps of .010)
RS 9.A1
0
9
 .0625 to 4.000 in Steps of 1/16
 .100 to 4.000 in Steps of .100
  1 Block each, .0625, .100, .125,  200
      .250, .300, .500, 1.000,  and 2.000
NOTE:  Accessories must be ordered separately.   Click here to go to Rectangular accessories. 
Economy Grade Gage Block Sets
± 50 µin.
Made in China
Catalog
No.
 Grade 
 Blocks 
in Set

							
 Blocks included in Set
RS 81.B
±50µin.
81
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.
   9 Blocks .1001 thru .1009 (Steps of .0001)
 49 Blocks .101 thru .149 (Steps of .001)
 19 Blocks .050 thru .950 (Steps of .050)
  4 Blocks 1.000 thru 4.000 (Steps of 1")
.
.
.
.
.
RS 81.W ±50µin.
81
Set is made AND calibrated in China.
The calibration is NOT accredited.
   9 Blocks .1001 thru .1009 (Steps of .0001)
 49 Blocks .101 thru .149 (Steps of .001) 
 19 Blocks .050 thru .950 (Steps of .050)
  4 Blocks 1.000 thru 4.000 (Steps of 1"
Micrometer Checking Set
Catalog
No.
 Grade 
 Blocks 
in Set
 Measuring Range
 Blocks included in Set
RS 10.A
AS1
10
 Used to check Travel of 1" micrometer    
 1 Block each: .105, .210, .315, .420,
 .500, .605, .710, .815, .920, and 1.000
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©2008, Webber Gage Division, The L. S. Starrett Co, Cleveland, Ohio , 44145
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