For heavy-duty projects requiring a longer reach, the GREX 50ADLNS fine wire stapler has a longer extended nose accessing more angles, tighter corners and reaching deeper into projects. Additionally, the 50ADLNS uses a heavier flat-wire staple with a wider crown and thicker gauge. The GREX 50AD fine wire stapler uses a 20-gauge 1/2 inches crown staple with lengths ranging from 3/16 inches to 5/8 inches. What's more, the 50ADLNS is available in four different designs: 50AD (industry standard), 50ADLNS (long nose - projects requiring a longer reach), 50AF (auto-fire - speed of production), and the 50AFLM (auto-fire long-magazine - less reloading for continuous speed of production). Suggested applications: Upholstering, carpet laying, light wood assembly, display and sign work, luggage construction, silk screen assembly, home building applications, applying drapery fabric to cornices, sign shops, box spring and mattress covers, automobile interior, installation of light trim moldings, light gauge metal piercing, roofing paper, etc.