Hollow Punch
From DT Online
Hollow Punches are sharpened lengths of tube which are struck with a hammer against a firm surface.
Uses
These are struck with a hammer to cut holes in most compliant materials (e.g. paper, card, leather, textiles).
Note: Place a piece of scrap wood, or MDF under the material to be cut and use on a sturdy bench top or similar worksurface.
DT Online Buyers' Guide
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