Model 26A Head:

Capacity - Two sheets to 1/4” (6mm)
Wire Sizes - 21-28 Gauge Round
Crown Sizes - 1/2” (13mm)
Minimum Head Centers - 1-7/8” (48mm) for all material thicknesses

Compatibility: C.P. Bourg, Duplo, Harris, Heidelberg, Horizon, Macey, McCain, Panduro, Plockmatic, Rosback, Stahl, Theisen & Bonitz, Watkiss, Multi-Binder, Omega, Omni and others