Features:

• Operating pressure min-70 PSI, Max-120 PSI; air consumption .08 ft3/cycles at 100 psi
• Fastener length minimum 0.75 inches and maximum 1.5 inches; fastener diameter 0.120 inches
• 120 nail magazine capacity
• 15 degree collation angle; 3/8 in. NPT air inlet
• 5-year limited warranty

Editor Reviews:

Product Description:
Milwaukee's Heavy-Duty Coil Roofing Nailer features an ultra lightweight magnesium housing to minimize fatigue. Its compact size offers greater maneuverability. The Load-N-Go magazine holds 120 galvanized wire collated nails from 3/4 in. to 1-3/4 in. length and .120 in. diameter. A magnet holds the nail in place making loading fast and efficient. The thick rubber guards minimize housing damage. The tool-free depth of drive protects from overdriving nails. The self-cleaning air filter extends life by preventing dirt and debris from entering the tool. The adjustable air deflector with muffler directs exhaust away from the work area and holds down the noise. The textured selectable trigger lets you move from sequential or contact actuation by simply turning a knob. A removable shingle guide assists in quick shingle alignment.

Amazon.com:
This coil roofing nailer is one of seven new heavy-duty air-powered nailers from the venerable Milwaukee, and the whole series is another testament to the red label’s unflagging quality.

At the top of our list is how incredibly light Milwaukee’s nailers are, even fully loaded, and their compact size makes them a cinch to tote and use, especially in awkward positions. But a close second is the clever inclusion of a magnet that holds onto the nails as you’re loading and significantly speeds up the process, reducing fumbling and dropped fasteners. Another big tip of the hat to Milwaukee for incorporating both sequential and bump firing modes, accessible just by turning a knob, so when speed is a need, you’re ready to go, but precision is at your fingertips too. We like the quality built into this tool, from the magnesium housing to the rugged rubber bumper guard that protects your investment should the tool take a fall. The hassle-free replaceable nosepiece has hard-wearing carbide inserts, and there’s even a self-cleaning air filter in the tool handle, keeping dust and dirt out of the tool’s workings – and that means longer tool life. The shingle guide is a handy touch, and we like that it’s easily removed when it’s not needed.

In hand, this nailer feels great: light, comfortable, agile, and beautifully balanced. Loading fasteners is a breeze, depth adjustment is on-the-mark reliable, tool-free, fast and easy, and we couldn’t get the thing to jam. Roofers and contractors will love this nailer. --Kris Jensen-Van Heste

Amazon.com Product Description
Milwaukee’s 7120-21 Coil Roofing Nailer features an ultra lightweight magnesium housing that helps to minimize fatigue, and their compact size offers greater maneuverability. The Load-N-Go™ magazine holds 120 galvanized wire collated nails from 3/4 in. to 1-3/4 in. length and .120 in. diameter, and a magnet holds the nails in place for fast, efficient loading. A thick rubber guards minimize housing damage in case of a drop. The tool-free depth-of-drive adjustment gives you precise depth control and protects against overdriving nails. The in-handle self-cleaning air filter extends life by preventing dirt and debris from entering the tool. The adjustable air deflector with muffler directs exhaust away from the work area and holds down the noise. The textured selectable trigger lets you move from sequential or contact actuation by simply turning a knob. This nailer features a replaceable nosepiece with carbide inserts for easy maintenance and extended tool life and a removable shingle guide to assist in quick shingle alignment. Also features an internal piston catch for consistent driving power, plus a rubber over-molded handle and trigger.

Technical Details
PSI 70 to 120; 15-degree collation angle; air consumption .08 ft3 /cycle at 100 PSI; air inlet 3/8" NPT; magazine capacity 120; net weight 5.2 lbs.

What's in the Box
7120-21 Coil Roofing Nailer, safety glasses, 2 oz oil, 4mm hex wrench, carrying case.

Applications
Asphalt and fiberglass shingles, waterproof tar paper, roofing felt, fire wall (exterior gypsum board), house wrap, cement board, insulation board, metal drip edges, siding, vapor barrier, upholstery trim panels.

Rating : - Very good nailer!
I used this nailer to install my roof last year. It worked flawlessly for all 18 square of shingles installed. It only jammed once and that was my own fault because I loaded the nails wrong.

I even dropped it off my two story house on to concrete twice and it still performed great.

Pros: Easy to load, doesn't jam, extremely durable.

Cons: Can't think of any.