Stanley TRA700BN Heavy-Duty Staple & Brad Assortment, 2500-Pack 2,500-pc assortment of Heavy-Duty 27/64" staples Heavy-Duty ? 27/64" fits Stanley TR110, TR150, TR150HL,TR250, TRE550, PHT150, PHT250 PHT350 and Arrow T-50 336 pcs of 1/4" TRA704, 504 pcs of 5/16" TRA705, 504 pcs of 3/8" TRA706, 504 pcs of 1/2" TRA708, 252 pcs of 9/16" TRA709 and 400 pcs of 5/8" SWKBN625