Craftool® Corner Round Punches — Tandy Leather, Inc.
Half-Round Cutter Punches, Strong Reliable Leather Punch Set Multifunctional Sturdy Durable For Leather Engraving For Belts For Wallet End Processing - Walmart.ca
10 Size 5-50mm Leather Craft Tools Belt Strap Wallet End Punch for C Shape Shallow Circular Cut a Quarter Circle Round Punch - Etsy UK