Rayson Coil Binding Machine, 46 Holes, 4:1 Pitch, Punch up to 15 Sheets, Coil Binder Machine with Coil Binding Roller Inserter, A4, PD-1501 : Amazon.co.uk: Stationery & Office Supplies
Akiles CoilMac-EX Pro 4:1 Oval Hole Electric Coil Binding Machine with Electric Coil Crimper and Inserter
Multifunction Electric Heavy Duty Paper Binding & Punching Comb Wire Spiral Binding Machine with Stand (SUPER 4&1) - China Multifunction Binding Machine, Electric Heavy Duty | Made-in-China.com
Akiles DuoMac C41 Plastic Comb and 4:1 Coil Binding Machine – Printer's Parts & Equipment -USA
Akilies CoilMac-EX41+ Plus Coil Binding Machine, Electric Oval Hole Punch & Inserter 4:1 : Amazon.co.uk: Stationery & Office Supplies
Renz SPB 360 Coil Binder - Quality laminating, binding and finishing products from Murodigital