21-Degree 3-1/2 in. Round-Head Framing Nailer and 3-1/2 in. Full-Size Palm NailerRIDGID introduces the 21 3 1 2 in. Round Head Framing Nailer and 3 1 2 in. Full Size Palm Nailer. Featuring Magnesium Metal Housing, this nailer is the fastest in its class at 8 nails per second compared to competitors 3 nails per second. Pair this with the Full Size Palm Nailer for the ultimate job site combo. The RIDGID 3 1 2 in. Full Size Palm Nailer is compatible with 4d 16d common bulk nails 1 1 2 in. 3 1 2 in. long. It has a magnetic guide for