Weight 8.25 lbs. Packed with Fasten Edge Technology, an industry leading feature set, this nailer can take on any framing job. The RIDGID model R350RHF 21-degree 3 1/2 inch Round Head Framing Nailer is a perfect combination of power, weight and speed. Framing Nailer. Porter-Cable FR350B; RIDGID R350RHF 21° 3-1/2 in. While the Ridgid R350HE nailer takes full advantage of modern tech to create a lighter-weight, more efficient tool, it doesn’t overdo anything. Collation Type: Plastic; Depth Adjustment: Yes; Dry Fire Lockout: Yes; Fastener Length: 2″ to 3-1/2″ Fastener Type / Gauge: 20-22º RIDGID R350RHF 21 Degree Round Head Framing Nailer. The dry fire lockout feature prevents empty drives and preserves the tool life. Ridgid has done an excellent job of adding features that provide real benefits to the end-user without going overboard. The Full Strike Drive System makes this unit the lightest weight tool in its class- only 7 lbs. They call their feature set “Fasten Edge Technology.” The RIDGID 3-1/2 in. Round Head Framing Nailer features magnesium housing for durability and lighter weight.