The “3-in-1” Capability3 The gun is designed to load and fire three specific fastener shapes:4 Door-Type Staples (Narrow Crown): 5$4\text{ mm}$ to 6$14\text{ mm}$.7 Best for general fastening, upholstery, and fixing thin wood. U-Type Staples (Round/Cable): $10\text{ mm}$ to $12\text{ mm}$. Ideal for securing low-voltage wires and cables without damaging the insulation.8 T-Type Nails (Brad Nails): $10\text{ mm}$ to $14\text{ mm}$. Used for decorative trim, molding, and small woodworking projects where you want the nail head to be less visible.9
