The Akiles WireMac-M comes in two options: either a 3:1 pitch to handle Wire-O® sizes from 1/4" to 9/16", or a 2:1 pitch to handle the full range of Wire-O® sizes from 1/4" through 1 ¼". The 3:1 WireMac manual binding machine punches three holes per inch, while the 2:1 version punches two hole per inch. Both models have an array of features that make punching and binding wire spines simple, fast and effective with a professional finish, including adjustment opportunities for precise punching and finishing, a wire hanger for easy paper inserting, and guides to assist in the proper wire size selection for your particular applications. Built specifically for low to medium volume users, Akiles manufactured this machine with one main goal in mind: to meet the demands of medium sized offices with daily to weekly book binding needs. When you buy the Akiles WireMac-M manual Wire-O® binding machine online, you get a quality, all-in-one punch and bind system that was built to offer productivity and efficiency.