Recently I tested two nailers introduced in 2008. In keeping with the trend toward more compact framing guns, the SN902XP is Senco's smallest, lightest framer yet. DeWalt's D51850, by contrast, is larger and heavier than any of the company's previous models. Both tools take round-head nails, but clipped-head versions are available (D51825 and SN901XP). My crew and I used the guns for several months. Here's what we found out. DeWalt D51850

Weight: 8.6 pounds Size: 14 1/4" H x 21 1/4" L Nail length: 2" to 3 1/2" Nail diameter: .113" to .148" Capacity: 65 nails Street price: $260

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