Three times easier to use than all other comparable desktop punches! Durable all steel construction guarantees years of dependable service. Adjusts from the bottom for 2-hole and 3-hole punching. Full, non-marring base serves as the chip holder. Lever lock down for compact storage. Slide-off chip tray for no-spill emptying. Manufacturer's limited lifetime warranty. 816124-B4 816124B4 750-711-044 750711044 0901-1810 09011810 H274030 711-044 711044 042-74030Q 04274030Q SWI74030 SWI-74030 05050574030 5050574030