Binding Machine, Binding Machine Comb Binding Machine 21Holes Binding 450 Sheets Book Binder Machine with 100 PCS 3/8'' Comb Spines

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Binding Efficiency and Neatness Our binding machine handles bulk projects effortlessly punching up to 21 holes 12 sheets and binding 450 sheets at once for schools offices and businesses, it ensures professionally finished documents. Compatible with Various Sizes: This comb binding machine is suitable for Letter size, A4 size, A5 size, and more, ensuring strong compatibility for various document bindings. Easy to Operate: Designed for user convenience, our comb punch binder features adjustable edge guides and side margins, and expandable comb binding from 3/8'' to 2''. Simply press the handle lever upward to punch and downward to bind, making operation easy and effortless! Sturdy & Material Crafted with a cast iron base with a powdercoated surface our book binder is robust and rustresistant The ABS plastic shell is wearresistant and not easily cracked Metal side arms and carbon steel blades ensure durability and precise punching