For the most demanding applications, the NS20BXP combines all of the features and benefits of the standard NS20XP while providing 20% more power. The NS20BXP drives both 16 and 17 ga, 7/16 in crown staples (1 to 2 in L).20% more powerful than the standard NS20XP for the most demanding applicationsEnhanced EZ-Clear latch allows for quick access to clear fastenersNew drive track design eliminates movement of the staple, enhancing overall drive performance and virtually eliminating fastener jams, skipping and misfiresWell balanced, ergonomic design for all day use