|
Tooling
Available to 27"
Clark offers a large variety of standard
and custom patterns and perforation types. Our state-of-the-art
computer controlled presses can produce round, square, oblong,
and slot, straight line and staggered hole patterns. We are capable
of producing custom patterns to meet the most stringent requirements.
Call us today to request a quote on your custom perforation needs.
Size
of Perforations:
|
|
Fraction
|
Decimal
|
Centers
or Feed
|
Holes/
sq.
inch
|
%
open
area
|
|
|
.027
|
.050
straight 90°
|
400
|
23
|
|
|
.027
|
.066
staggered
|
300
|
17.5
|
|
|
|
|
|
|
|
1/32
|
.033
|
.055
straight 90°
|
324
|
28
|
|
1/32
|
.033
|
.071
staggered
|
237
|
20
|
|
1/25
|
.040
|
.066
straight 90°
|
225
|
27
|
|
1/25
|
.040
|
.088
staggered
|
169
|
22
|
|
|
|
|
|
|
|
1/24
|
.042
|
.066
straight 90°
|
225
|
31.1
|
|
1/24
|
.042
|
.088
staggered
|
169
|
23.4
|
|
1/23
|
.043
|
.066
straight 90°
|
225
|
33
|
|
1/23
|
.043
|
.088
staggered
|
169
|
24.5
|
|
1/22
|
.045
|
.066
straight 90°
|
225
|
37
|
|
1/22
|
.045
|
.088
staggered
|
169
|
27
|
|
1/21
|
.048
|
3/32"
staggered 60°
|
131
|
23
|
|
1/21
|
.048
|
.071
straight 90°
|
178
|
32
|
|
|
|
|
|
|
|
1/20
|
.050
|
.078
straight 90°
|
169
|
33
|
|
1/20
|
.050
|
.100
staggered
|
132
|
26
|
|
1/20
|
.050
|
3/32"
staggered 60°
|
131
|
25.7
|
|
1/20
|
.050
|
.071
straight 90°
|
178
|
35
|
|
1/20
|
.050
|
.084
straight 90°
|
144
|
28
|
|
1/20
|
.050
|
.110
staggered
|
108
|
20
|
|
|
|
|
|
|
|
1/19
|
.053
|
3/32"
staggered 60°
|
131
|
29
|
|
1/19
|
.053
|
.071
straight 90°
|
178
|
39.5
|
|
1/18
|
.055
|
.084
straight 90°
|
144
|
37
|
|
1/18
|
.055
|
.110
staggered
|
108
|
27
|
|
1/18
|
.055
|
3/32"
staggered 60°
|
131
|
32.3
|
|
1/18
|
.055
|
.071
straight 90°
|
178
|
44.1
|
|
1/17
|
.059
|
3/32"
staggered 60°
|
131
|
35.8
|
|
|
|
|
|
|
|
1/16
|
.062
|
7/64"
staggered 60°
|
98
|
30.4
|
|
1/16
|
.062
|
1/8"
staggered 60°
|
74
|
22.5
|
|
1/16
|
.062
|
3/32"
straight 90°
|
100
|
31
|
|
1/16
|
.062
|
.100
straight 90°
|
100
|
31
|
|
1/16
|
.062
|
3/32"
staggered 60°
|
131
|
40.5
|
|
1/16
|
.062
|
9/64"
diagonal 45"
|
50
|
15.5
|
|
1/16
|
.062
|
5/32"
staggered 60°
|
44
|
13.5
|
|
|
|
|
|
|
|
1/15
|
.066
|
1/8"
staggered 60°
|
74
|
25.3
|
|
1/14
|
.072
|
1/8"
staggered 60°
|
74
|
30
|
|
|
|
|
|
|
|
1/13
|
.078
|
1/8"
staggered 60
|
74
|
35.2
|
|
5/64
|
.078
|
1/8"
straight 90°
|
64
|
30.5
|
|
5/64
|
.078
|
7/64"
straight 90°
|
83
|
39.6
|
|
5/64
|
.078
|
7/64"
staggered 60°
|
98
|
46.7
|
|
5/64
|
.078
|
.150
staggered 60°
|
49
|
24
|
|
5/64
|
.078
|
.177
diagonal 45''
|
32
|
15.2
|
|
5/64
|
.078
|
.098
staggered 60°
|
120
|
57
|
|
|
|
|
|
|
|
1/12
|
.083
|
1/8"
staggered 60°
|
74
|
40
|
|
5-1/2/64
|
.086
|
9/64"
staggered 60°
|
58
|
33.6
|
|
3/32
|
.0937
|
5/32"
staggered 60°
|
47
|
32.4
|
|
3/32
|
.0937
|
3/16"
diagonal 45°
|
28
|
19.4
|
|
3/32
|
.0937
|
3/16"
staggered 60°
|
33
|
22.8
|
|
3/32
|
.0937
|
9/32"
straight
|
12.6
|
8.7
|
|
|
.097
|
1/8"
staggered 60°
|
74
|
55
|
|
|
|
|
|
|
|
6-1/2/64
|
.102
|
.143
straight 90"
|
49
|
40
|
|
6-1/2/64
|
.102
|
5/32"
staggered 60°
|
47
|
38.4
|
|
7/64
|
.109
|
3/16"
staggered 60°
|
33
|
30.8
|
|
7/64
|
.109
|
5/32"
staggered 60°
|
47
|
44
|
|
7/64
|
.109
|
9/32"
diagonal 45°
|
12.5
|
12
|
|
7-1/4/64
|
.113
|
3/16"
staggered 60°
|
33
|
33
|
|
|
Fraction
|
Decimal
|
Centers
or Feed
|
Holes/
sq.
inch
|
%
open area
|
|
7-1/2/64
|
.116
|
5/32"
staggered 60°
|
47
|
51
|
|
7-1/2/64
|
.116
|
3/16"
staggered 60°
|
33
|
34.6
|
|
|
|
|
|
|
|
1/8
|
.125
|
3/16"
staggered 60°
|
33
|
40.5
|
|
1/8
|
.125
|
7/32"
staggered 60°
|
24
|
29.4
|
|
1/8
|
.125
|
1/4"
staggered 60°
|
18-1/2
|
23
|
|
1/8
|
.125
|
.250
diagonal 45°
|
2592/sq
ft
|
22
|
|
1/8
|
.125
|
9/32"
staggered 60°
|
14-1/2
|
18
|
|
1/8
|
.125
|
3/8"
staggered 60°
|
8
|
9
|
|
1/8
|
.125
|
1/2"
straight 90°
|
4
|
5
|
|
1/8
|
.125
|
1/2"
staggered 60°
|
4.83
|
6
|
|
|
|
|
|
|
|
8-1/2/64
|
.134
|
7/32"
staggered 60°
|
24
|
34
|
|
9/64
|
.141
|
17/64"
staggered 45°
|
15
|
22
|
|
9/64
|
.141
|
7/32"
staggered 60°
|
24
|
37.4
|
|
9/64
|
.141
|
3/16"
straight 90°
|
29
|
44.5
|
|
9/64
|
.141
|
3/16"
staggered 60°
|
33
|
51.5
|
|
9-1/2/64
|
.149
|
7/32"
staggered 60°
|
24
|
41.8
|
|
|
|
|
|
|
|
5/32
|
.156
|
.200
diagonal 45°
|
48
|
|
|
5/32
|
.156
|
3/16"
staggered 60°
|
33
|
63
|
|
5/32
|
.156
|
7/32"
staggered 60°
|
24
|
45.8
|
|
5/32
|
.156
|
1/4"
staggered 60°
|
18-1/2
|
35.3
|
|
|
|
|
|
|
|
10-1/2/64
|
.164
|
7/32"
staggered 60°
|
24
|
50
|
|
11/64
|
.172
|
1/4"
staggered 60°
|
18-1/2
|
43
|
|
11-1/2/64
|
.180
|
1/4"
staggered 60°
|
18-1/2
|
47
|
|
|
|
|
|
|
|
3/16
|
.187
|
7/32"
staggered 60°
|
24
|
66
|
|
3/16
|
.187
|
1/4"
staggered 60°
|
18-1/2
|
51
|
|
3/16
|
.187
|
9/32"
staggered 60°
|
14-1/2
|
40
|
|
3/16
|
.187
|
5/16"
staggered 60°
|
11.8
|
32.4
|
|
3/16
|
.187
|
3/8"
staggered 60°
|
8.18
|
23
|
|
3/16
|
.187
|
1/2"
straight 90°
|
4
|
11
|
|
3/16
|
.187
|
5/8"
staggered 60°
|
2.94
|
8.11
|
|
|
|
|
|
|
|
12-1/2/64
|
.194
|
9/32"
staggered 60°
|
14.5
|
42.8
|
|
13/64
|
.203
|
1/4"
staggered 60°
|
18.5
|
59.8
|
|
13/64
|
.203
|
9/32
" staggered 60°
|
14.5
|
46.9
|
|
13-1/2/64
|
.212
|
|
