The G8 Head features a side-feed design, eliminating the need for a Swivel, dramatically increasing the reliability of this head and can be used on virtually any stitcher or collator which uses DeLuxe Stitcher, ISP/Interlake, 26 Heads or Hohner 52/8, 55/7 and 48/5 Heads. Capacity: from 2 sheets up to 5/16" Crown Sizes: 1/2" Wire Sizes: 23-28 round and 21x25 flat Minimum Head Center: 2-3/64" Speed: 20,000 stitches per hour, 12,000 Loop stitches per hour Options: Loop and Stop Stitch Kits The side-feed design eliminates the Swivel, wire jamming and dropped stitches. This head can be used on any stitcher or collator using DeLuxe Stitcher 26/26D, ISP/Interlake/Acme Champion 26 or Magnatek and Hohner 52/8, 55/7 and 48/5 Heads. User-friendly features include a "snap-out" Wire Tube, a "swing-away" Wire Holder Spring and an on/off Feed Lever.