The Double Post Punch punches approximately 3/4 inch from edge of paper. The holes are approximately 1 inch apart. The hole diameter is 1/16 inch. MANUFACTURERS-REPLACEMENT POLICY: There is a 1 year (no fuss) replacement for punches. IF PURCHASED DIRECTLY WITH PACKASMILE LLC THE MANUFACTURER/INVENTOR. (***LOOK AT SELLER NAME. FOR MANUFACTURERS WARRANTY. SELLER SHOULD BE PACKASMILE LLC). This product is Protected by US Pat No. 8,763,503. PLEASE NOTE- PACKASMILE LLC is the Manufacturer (Inventor)That this is the original earring card punches from the inventor of these products. If you see a similar product being sold elsewhere-Those products are not authorized by the inventor and may be infringing intellectual property rights.