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Corner Rounder 4mm

Corner Rounder 4mm

Propdog

£9.99

Corner rounders are used to take the smallest of cuts off the corner of a card, allowing you to easily riffle to that card. Bicycle cards have a corner diameter of 3mm, so a 4mm cutter will take off just 1mm and a 5mm cutter will take off 2mm from the corner of the card. Please note: Two different styles available

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Buy from PROPDOG LIMITEDPROPDOG LIMITED is a UK retailer, not the maker. Price seen 2026-09-26. Not an affiliate link, we earn nothing from it.

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The part other shops don't tell you. Three separate questions, kept separate on purpose, each with its source.