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Unground Rod, 2 Helical Coolant Holes, 30° Helix
Metric Sizes 6mm to 20mm Diameter
Length 330mm
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Nominal
Size
D
Dimensions, mm
Description
TechMet Stock #
Diameter
Coolant
Hole
Diameter
Bolt
Circle
Pitch Length
Standard
Grade
Complementary
Grade
ØD
Ød
ØTK
Pitch
Tolerance (± 0.5°)
TMK-320
TMK-3020
6
6.6
0.70
2.60
32.65
+0.67, -0.65
6mm x 330mm H2 30D SBC UG
805001
805055
7
7.7
1.00
3.70
38.09
+0.78, -0.76
7mm x 330mm H2 30D SBC UG
805002
805056
8
8.7
1.00
4.00
43.53
+0.89, -0.86
8mm x 330mm H2 30D SBC UG
805003
805057
9
9.7
1.40
4.80
48.97
+1.00, -0.97
9mm x 330mm H2 30D SBC UG
805004
805058
10
10.7
1.40
4.80
54.41
+1.12, -1.08
10mm x 330mm H2 30D SBC UG
805005
805054
11
11.7
1.40
5.30
59.86
+1.22, -1.19
11mm x 330mm H2 30D SBC UG
805006
805059
12
12.7
1.40
6.25
65.30
+1.33, -1.30
12mm x 330mm H2 30D SBC UG
805007
805060
13
13.7
1.75
6.50
70.74
+1.45, -1.41
13mm x 330mm H2 30D SBC UG
805008
805061
14
14.7
1.75
7.10
76.18
+1.56, -1.51
14mm x 330mm H2 30D SBC UG
805009
805062
15
15.7
1.75
7.70
81.62
+1.67, -1.62
15mm x 330mm H2 30D SBC UG
805010
805063
16
16.7
1.75
8.30
87.06
+1.78, -1.73
16mm x 330mm H2 30D SBC UG
805011
805064
17
17.7
1.75
8.90
92.50
+1.90, -1.83
17mm x 330mm H2 30D SBC UG
805012
805065
18
18.7
2.00
9.55
97.95
+2.00, -1.95
18mm x 330mm H2 30D SBC UG
805013
805066
19
19.7
2.00
10.10
103.39
+2.11, -2.06
19mm x 330mm H2 30D SBC UG
805014
805067
20
20.7
2.00
10.40
108.83
+2.22, -2.16
20mm x 330mm H2 30D SBC UG
805015
805068

TOLERANCES, mm
Ordering Examples:
TOLERANCES, mm
Sizes, mm
ØD
Length
Order by Description & Grade:
500 pcs 20mm x 330mm H2 SBC UG TMK-320

-OR-


Order by TechMet Stock #:
500 pcs 805015
Sizes, mm
Ød
ØTK
ALL
+0.4, -0
+5, -0
6
7 to 8
9 to 10
11 to 12
13 to 17
18 to 19
20
± 0.10
± 0.15
± 0.15
± 0.15
± 0.20
± 0.25
± 0.25
+0, -0.4
+0, -0.4
+0, -0.6
+0, -0.8
+0, -0.8
+0, -0.8
+0, -1.0

Grade
Selection
TMK-320
 First -choice micrograin grade, offering outstanding performance in a broad range of materials and  applications.
TMK-3020
 Ultrafine grain grade, offering increased hardness and wear resistance in more stable applications.