Pneumatic Staple Gun, 21 Gauge Pneumatic Upholstery Stapler For 80 Series 1/2-Inch Crown 1/4"-5/8" Length Staples, 70-110 PSI Air Staple Gun For Woodworking, Upholstering, Crafts, DIY Projects

About these items Compatible with a wide range of staples, these pneumatic staple guns suit 13 gauge carton closing staples with 1-3/8" crowns and 5/8" or 3/4" leg lengths, 16 gauge medium or wide crown staples from 5/8" to 2", 20 gauge T50 and 50 series fine wire staples with 7/16" or 1/2" crowns, 21 gauge 80 series fine wire staples with 1/2" crowns, and 22 gauge 71 series staples with 3/8" crowns. Most models operate at 70-120 PSI and feature 1/4" NPT air inlets for standard air compressor compatibility. Magazine capacities vary from 100 to 180 staples, supporting high-efficiency work. Designed with sequential or dual firing modes, some models also include depth adjustment or quick-release jam clearing features. Ergonomic non-slip grips, lightweight aluminum alloy bodies, and safety trigger systems ensure comfort and control during extended use. These air staplers are ideal for packaging, upholstery, picture framing, light woodworking, roofing, flooring, and DIY furniture assembly. Supports staple lengths ranging from 5/32" up to 2", depending on model, with aluminum alloy construction offering a strong, wear-resistant build. Each tool includes safety glasses and necessary hex wrenches for convenient maintenance. Whether you're fastening cardboard, attaching fabrics, securing plywood, or assembling wood frames, this collection of pneumatic staple guns covers everything from lightweight craft tasks to heavy-duty framing and sheathing work. A combination of user-friendly designs like rotatable or rear exhausts, safety flaps or switches, and extended noses on select models allows precise operation even in confined areas. All tools must be connected to an air compressor (not included) for use, making them dependable choices for both professional trades and home project enthusiasts. Specifications Compatible Staple Gauges: 13 / 16 / 20 / 21 / 22 Gauge Compatible Crown Widths: 3/8" / 7/16" / 1/2" / 1" / 1-3/8" Compatible Staple Lengths: 5/32" – 2" depending on model Magazine Capacity: 100 – 180 staples Operating Pressure: 70 – 120 PSI Air Inlet: 1/4" NPT Material: Aluminum Alloy Body Net Weight Range: 2.2 – 6.61 lbs Firing Modes: Sequential / Contact / Dual (varies by model) Special Features: Extended Nose, Depth Adjustment, Quick-release Jam Clearing Product Dimensions Range: 8.66" – 14.37" (L), 1.77" – 10.63" (H) Package Contents Each pneumatic staple gun includes: 1–4 Hex Wrenches (M2.5 to M8 depending on model) 1 x Pair of Safety Goggles (on select models) 1 x User Manual (on select models) 1 x Trigger Pin with Retaining Ring (on specific models)