Wave-shaped die provides effortless removal of coupon. Precision-ground 3-point punches suitable for 12 gauge mild or 14 gauge stainless steel. Tough and durable dies made from tool steel. Supplied with sturdy case for convenient storage. ( Items Included - 2 1/2 in. punch (2 15/16 in. actual hole size),3 in. punch (3 9/16 in. actual hole size), 3 1/2 in. punch (4 1/16 in. actual hole size), 4 in. punch (4 9/16 in. actual hole size), Case )