Meet the FLEX FX4351A-1C 21 Degree Framing Nailer Kit—a cordless, high-performance framing tool built for professionals and serious DIYers who want power without hoses or compressors. It’s tuned for fast, reliable framing work while keeping your site neat and mobile.

Key Features & Design

• Power source: FLEX 24V brushless motor for high-speed framing performance.
• Nail compatibility: Accepts 2-inch to 3-1/2-inch fasteners; Magazine Angle: 21°; Magazine Max. Capacity: 53.
• Speed & efficiency: Drives up to 3 nails per second with zero ramp up time; Drives up to 1,100 nails on a single charge with a 5.0Ah battery.
• Depth control: Power Adjustment Dial easily sets ideal nailing depth.
• Visibility & safety: Dual LEDs light up dark areas; Dry-Fire Lockout eliminates blank firing after the nail supply is exhausted.
• Convenience: Pivoting rafter hook for easy storage; Heavy-duty Belt Clip (mountable on either side); Non-Mar Nose Tip; Soft Grip for comfortable use.
• FLEX 24V compatibility: Cross-compatibility with all FLEX 24V batteries, chargers, and tools.
• What’s included: Kit includes the 21° Framing Nailer [FX4351A], 24V 5.0Ah Lithium-Ion Battery [FX0121], 24V 160W Fast Charger [FX0411], Rafter Hook, Belt Clip, (3) No-Mar Tips (in plastic bag), Allen Key, Soft Bag.
• Warranty: FLEX Limited Lifetime Warranty when registered within 30 days of purchase at registermyFLEX.com through December 31, 2024.

Performance At A Glance

• The FLEX Advantage: 20% more power with 24V lithium, 25% longer runtime with THERMA-TECH™ heat management, up to 50% faster charging with high-power, dual fan chargers.
• Illumination: Illumination features: Dual LED lights for improved visibility on the work surface.
• Operation modes: Operation Mode: Bump/Sequential.
• Dry-fire safety: Dry Fire Lockout to prevent blank firing when the magazine is empty.
• Nail delivery: Drives up to 3 nails per second with zero ramp up time.

Specs & Inclusions

• : 1,100 nails with 5.0Ah battery.
• : Hollowed-out magazine with Rear Loading; Magazine Max. Capacity: 53; Magazine Angle: 21°; Magazine Material: Metal.
• : Fastener Diameter: 0.113-0.131 in; Fastener Length: 2 to 3-1/2 in.
• : Tool Weight: 9.33 lbs; Tool Length: 14.22 in; Tool Width: 5.71 in.
• : Driving Depth Adjustment: Yes; Driving Depth Indicator: Yes; Rafter Hook: Yes; Non-Mar Nose Tip: Yes; Soft Grip: Yes; Belt Clip: Yes; Motor Type: Brushless; Nailer Type: Framing Nailer; Driving Mechanism: Air Spring - Pre-Pressurized Cylinder.
• : Illumination: Yes, Dual LED; Pre-light: Yes; After-glow: Yes.
• : [1] Framing Nailer [FX4351A], [1] 24V 5.0Ah Lithium-Ion Battery [FX0121], [1] 24V 160W Fast Charger [FX0411], [1] Rafter Hook, [1] Belt Clip, [3] No-Mar Tips (in plastic bag), [1] Allen Key, [1] Soft Bag.