The all-metal construction makes HART’s Heavy-Duty 4-in-1 Staple Gun durable and long-lasting. This gun takes 4 different staples including light-duty staples and heavy-duty staples 18 GA brad nails and crown staples. How does it do this? It’s got a hi-low power switch control that adjusts the height to match the different materials. The handle is designed to be 50% easier to squeeze- and you’ll find the staples and nails are 15% more flush to wood when compared to our leading competitors. We especially think you’ll like the bottom load magazine. It makes reloading faster and prevents the inconvenience of staple jams so you can get back to work more quickly. Another handy feature is the staple reload window. Just check the window from time to time to make sure you don’t run out of staples or brad nails during your project.