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Precision Ground Rod, Random Lengths
Inch Sizes 1/16" to 1-1/4" Diameter
h6 tolerance
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Fractional
Size
D
Dimensions, inch
Description
TechMet Stock #
Standard Grade
Complementary Grade
D
L
TMK-320
TMK-3028
TMK-326
TMK-3012
    1/16
0.0625
   13-1/4
  .0625 x 13.25 Centerless Grd
GRR-4
    3/32
0.0937
   13-1/4
  .09375 x 13.25 Centerless Grd
GRR-6
    7/64
0.1093
   13-1/4
  .109375 x 13.25 Centerless Grd
GRR-7
    1/8
0.1250
   13-1/4
  .125 x 13.25 Centerless Grd
GRR-8
    9/64
0.1406
   13-1/4
  .140625 x 13.25 Centerless Grd
GRR-9
    5/32
0.1562
   13-1/4
  .15625 x 13.25 Centerless Grd
GRR-10
    11/64
0.1718
   13-1/4
  .171875 x 13.25 Centerless Grd
GRR-11
    3/16
0.1875
   13-1/4
  .1875 x 13.25 Centerless Grd
GRR-12
    13/64
0.2031
   13-1/4
  .203125 x 13.25 Centerless Grd
GRR-13
    7/32
0.2187
   13-1/4
  .21875 x 13.25 Centerless Grd
GRR-14
    1/4
0.2500
   13-1/4
  .250 x 13.25 Centerless Grd
GRR-16
    5/16
0.3125
   12-1/4
  .3125 x 12.25 Centerless Grd
GRR-20
    3/8
0.3750
   12-1/4
  .375 x 12.25 Centerless Grd
GRR-24
    7/16
0.4375
   12-1/4
  .4375 x 12.25 Centerless Grd
GRR-28
    1/2
0.5000
   12-1/4
  .500 x 12.25 Centerless Grd
GRR-32
    9/16
0.5625
   12-1/4
  .5625 x 12.25 Centerless Grd
GRR-36
    5/8
0.6250
   12-1/4
  .625 x 12.25 Centerless Grd
GRR-40
    3/4
0.7500
   12-1/4
  .750 x 12.25 Centerless Grd
GRR-48
    7/8
0.8750
   12-1/4
  .875 x 12.25 Centerless Grd
GRR-56
    1
1.0000
   12-1/4
  1.000 x 12.25 Centerless Grd
GRR-64
    1-1/4
1.2500
   12-1/4
  1.250 x 12.25 Centerless Grd
GRR-80


TOLERANCES, inch
Ordering Example:
TOLERANCES, inch
Size, inch
D, h6
L
Order by
Description & Grade:

500 pcs 1.25 x 12.25 Centerless Grd TMK-320

-OR-

Order by
TechMet Stock #:

500 pcs GRR-80
Size, inch
Straightness
Roundness
1/16 to 7/64
+0, -.00024
+ 1/4, -0
1/8 to 7/32
+0, -.00031
1/16 to 3/16
.006 max
.00008 max
1/4 to 3/8
+0, -.00035
13/64 to 3/8
.006 max
.00016 max
7/16 to 5/8
+0, -.00043
7/16 to 1/2
.006 max
.00016 max
3/4 to 1
+0, -.00051
9/16 to 1-1/4
.003 max
.00016 max
1-1/4
+0, -.00063