It uses standard Senco C Type 22-gauge 3/8-inch crown staples to get the job done right and it includes a 1-inch nose extension for those tough to reach areas. The high-capacity bottom-load magazine handles 185 staples and the driver guide moves back to easily clear jams from the magazine. The US58 stapler requires 70-120 PSI air pressure so it will work with most air compressors.
B and C Eagle 71/08 (10m) 5/16 in. 22 Gauge Upholstery Staples, 10,000/Box
These fine wire 22 gauge staples have thin wire which allow them to penetrate all types of upholstery. They have a 3/8 inch Crown (width) so they are wide enough to hold and narrow enough to put in tight places.
Surebonder 300-58-5m Narrow Crown 22 Gauge Upholstery Staples - 5/8 inch Length - 5000 Count
Porter-cable Us58 22 Gauge 3/8 In. Upholstery Stapler : Target
WOODPECKER N8016 21 Gauge Pneumatic Upholstery Stapler Power Tool, 12.8mm Crown 6-16mm Length Fine Wire Staples, for Woodworking - AliExpress
Pneumatic Nailers and Staplers
PORTER-CABLE Upholstery Stapler, C-Crown, 1/4-Inch to 5/8-Inch, 22GA (US58) : Everything Else
Porter Cable 22 Gauge Upholstery Staples, 1/2, (10,000/Pack), #PUS12G
These staples have a 3/8 crown and a 3/8 leg and a 22 gauge wire. Additional discounts are available at one and two case quantity orders.
Spot Nails Spot Nails 87006SS 3/8-Inch Crown 304 Stainless Steel Staples with 3/8-Inch Leg Similar T
PORTER CABLE 22 Gauge 3/8 Upholstery Stapler - Contractor Cave Tools