Target iBind A20 Spiral Comb Binding Machine is a 20% Lite Punching Effort & Soundless binder machine for office/institution and offering flexibility for basic binding needs for A4 and letter and other small size document with 21 holes and a punch capacity of 20 sheets of 80 gsm at a time. Maximum bind capacity of 450 sheets/paper of 80 gsm. Its sturdy construction and high-quality materials are ideal for busy offices. The margin depth is adjustable from 2.5 to 6.5 mm, and the distance between holes is 14.3 mm. Chart/table on the machine for comb size and paper/sheet capacity. Max. Width of paper DIN A4 (297mm) Dimensions (HxWxD) 370x330x180 Max Punching capacity, paper 15 Max Bind capacity 450 Max. Comb Size 51mm