Our staple gun features high quality material for durability and rust-proof. Ensures a secure grip when fastening for longer periods of time. The 3-in-1 staple gun comes with 1000pcs crown es, 1000pcs U-Shape Staples, 1000pcs Brad Nails for a wide variety of applications: general DIY repairs, crafting, decorating, upholstery projects, roofing, and more. When a nail on a nail gun gets stuck, pull down the metal drive channel to remove the jammed nail and ensure the gun is working properly. Modify the pressure (ranging from low to high) using the screw, enabling penetration between materials of varying hardness, facilitating project execution.