There is a margin adjustment knob on the back of the stapler. You can adjust the distance between the hole and the edge of the paper by sliding the knob left and right (3mm/0.12 inch, 4mm/0.16 inch and 5mm/0.2 inch).
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It has a margin adjuster that allows you to adjust the margins to 2mm/0.07inch, 4mm/0.15inch or 6mm/0.23inch.The adjustable margins are designed to allow it to accommodate a wider range of binding requirements. This product is made of high quality iron and plastic, which is strong, durable, resistant to wear and tear, and not easily deformed.
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