Although it is possible to use this machine

• Although it is possible to use this machine with 3:1 pitch and 2.5:1 pitch spiral coil, the DuoMac 321 does not include a spiral coil inserter. It is also important to note that these two pitches of coil can be somewhat difficult to find and are usually produced on Chanel Sunglasses,demand. If you plan on using this machine with coil it is a good idea to order your supplies with lots of time to spare in order to allow for production lead times.
• Each of the different binding styles offered by the DuoMac 321 have their own limitations.
  • 3:1 pitch wire is only available in sizes between 3/16" and 9/16".
  • Although 2:1 wire can be used to bind larger documents up to 1-1/2" in diameter, this machine can only be used with wires up to 1-1/4" in size.
  • GBC Proclick binding spines are Carrera Sunglasses,only available in three sizes (5/16", 1/2" and 5/8") and in four colors. They are only available in eleven inch lengths.
  • Three to one spiral coil is available in sizes from 6mm up to 50mm. However large diameter coils can be difficult insert, especially with the smaller square holes that are produced by this machine.
  • 2.5:1 pitch coil is only designed for binding large diameter books and is available in sizes ranging from 20mm up to 56mm. However, this coil will need to be inserted by hand because of the slight pitch difference between the holes and the coil.
• With all of the features that this machine has, it can be a little bit intimidating to inexperienced users. There are a lot of handles, knobs and buttons on this machine that can be somewhat confusing if you aren't sure what you are doing. This machine isn't really that hard to use. It may just take a little bit of experimenting and reading the users manual.

Recommendation:

• The DuoMac 321 is available at such a great price point and offers so many features it hardly makes sense to buy a wire binding machine that can only produce one hole pattern.
• This machine is a little bit larger and can be more intimidating than a normal wire binding machine such as the Oakley Sunglasses,Akiles Wiremac M. However, the flexibility that it offers in terms of document size and presentation appearance are awesome.