Has pneumatic vertical clamping system with fence. Capacity - moldings up to 2-3/4" high by 4-3/4" wide Can be used to join frames of 4, 6, or 8 sides Fixed 90˚ fence slides to allow fasteners to be inserted in two preset locations Joiner designed to work well in small custom frame or woodworking shop Joiner uses strip staples making it convenient for operator change staple size