View on LOZ Suggested Retail: $38.99. Arrow PT50 Oil-Free Pneumatic Staple Gun, Professional Heavy-Duty Stapler for Wood, Upholstery, Carpet, Wire Fencing, Fits 1/4”, 5/16”, 3/8'', 1/2'', 9/16” Staples , Red. The PT50 Pneumatic Staple Gun is great for household projects, like insulation, house wrap, roofing, flooring, or upholstery; This tool is great for large projects and stapling into harder materials. The lightweight compact design, over mold rubber grip, and the exhaust cover that allows you to direct exiting air flow make for a comfortable stapling experience. Unlike other pneumatic tools, the PT50 does not require oil for maintenance; The safety trigger feature requires two triggers to be pulled before firing to prevent misfires.. 7 CALENDAR DAY FULL REFUND GUARANTEE ON THIS ITEM IF ANY ISSUE IS FOUND THAT WAS NOT DESCRIBED/PICTURED. 7 CALENDAR DAY STORAGE IS ALSO AVAILABLE. SEE NOTES TO BIDDER, IN AUCTION DETAILS, AT THE TOP OF PAGE 1 FOR MORE INFO.