Pneumatic carton closing staplers can provide a bit heavier gauge staples to yield more SURFACE AREA with a more Ribbon Style wire flattening process. Such is the case with these two tools. The first 34L.18 gives you this full 16 gauge wire staple as opposed to 16.5 gauge and has a 5/8" and 3/4" leg length design. Its slightly longer sister drives UP to 7/8" with 3/4" capability thrown in for good measure. Omer Internationally sources these tools... with care taken to ensure that they meet the proud level of specifications and standards that will enable them to bear the Omer name after having been carefully tested. Extra Strength, Extra Holding Power, Extra Tool Reliability...this is Omer's promise when you see the name.