Wire Diameter
Diamètre du fil
Diámetro del alambre
Book Thickness
Ėpaisseur du Livre
Grosor del Libro
Number of Sheets
Numéro de Feuilles
Número de Hojas
Inch
MM
Inch
MM
20lb
80gsm
3/16
¼
5/16
3/8
7/16
½
9/16
5/8
¾
7/8
1
1-1/4
4.8
6.4
7.9
9.5
11.1
12.7
14.3
15.9
19
22.2
25.4
31.8
1/8
3/16
¼
5/16
3/8
7/16
½
9/16
5/8
¾
7/8
1-1/8
3.2
4.8
6.4
7.9
9.5
11.1
12.7
14.3
15.9
19
22.2
28.6
30
45
65
80
95
110
125
140
160
190
220
285
30
45
65
80
95
110
125
140
160
190
220
285
Even Close:
Over Close:
An even close is the most desirable type of bind.
When the wide loops are closed under the narrow loops, the covers may
slip out of the bind if not closed tight enough.
Under Close:
When the narrow loops are closed under the wide loops, the wire forms
a wedge, which will keep the covers in the wire from falling out. This is also a desirable
bind. The wire still has to be closed tight enough with the closing bar adjustment knobs
How near the narrow loop is to the wide
loop when element is closed. Narrow loop
should overlap wide loop by about 1/32”
when closed.
8
