I used to use a little Fiskars circle punch and just center it by eye to create a half hole, but it only did a couple pages at a time (usually just 1 because I like thicker paper). That thing cost me about $10. Then I bought a "heavy duty" circle punch and still, by eye, centered it for the half hole. It punched more than a couple sheets, but not that many. That one cost me about $20. I finally decided that I make these crafts often enough that an actual half-hole punch would be better, and came across this one. It's not a craft brand that I know of, but couldn't find too many options out there and, honestly, was tires of the cheesy little punches that only did a few sheets at a time. This one works really well for me. I can punch through usually 10-15 sheets of my paper stock at a time, and the half circle is always perfect. It is not a perfect "half circle", though, more of a semi-circle. The punched hole is almost 1" wide and about 1/2" deep, which works well for my uses. Overall, I am happy with the purchase and the quality, especially since it is just a little more than the cheesy little hand punches from Michaels.
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The Akiles half moon calendar punch is designed so that you can quickly and easily add a half moon punch to your documents for use in binding
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Akiles Half-Moon Calendar Punch
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Akiles Half-Moon Calendar Punch
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Thumbcut Hand Punch. A sturdy hand punch to make a semi-circle thumbcut in the top of a calendar which can then be bound and hung using a calendar
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