Model # CN445R2

Internet #202995124

MAX 0-Gauge Super Roofer

Discontinued MAX

0-Gauge Super Roofer

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Product Overview

The CN445R2 is the latest version of the MAX Super Roofer. MAX manufactured the first roofing nailer sold in the US market and we continue to improve on our original design. The CN445R2 is lightweight yet very powerful. The CN445R2 features dial adjustable depth control, full round driver blade, rapid fire trigger, inline filter, trigger lock out, magnet in the nose, shingle guide, shoots 3/4 in. to 1-3/4 in. roofing nails and patent pending self cleaning nose. Shoots 3/4 in. to 1-3/4 in. roofing nails.

  • Tar Resistant Nose (Patent Pending) nose of the CN445R2 is designed to resist tar four times longer than conventional tools; equates to less time spent cleaning the tool and more productivity
  • Maintenance free end cap filter (US Patent 5637125) captures dirt and sand down to microns but lets oil and air into the tool, filter keeps inside parts clean and lasting longer than competitors tools without filters
  • Dial adjustable depth control, dial depth control requires no special tools, providing accurate depth control
  • Nose magnet holds last nail in place so it does not drop out of the tool and create a hazard on the roof
  • Full round driver blade drives nails flat, our competition uses a crescent or moon shaped driver, this causes curling and cupping of the nails and ultimately effects the life of the roof
  • Trigger lock allows user to lock tool from firing, MAX recommends when not using the tool to disconnect from air source
  • Weighs only 5.2 lbs.
  • MAX is known for unique features and high durability design, MAX is the pro contractor's choice
  • Need help? CLICK HERE to view our Nail Gun Buying Guide



Maximum fastener size (in.)
Minimum fastener size (in.)
Product Depth (in.)
Product Height (in.)
Product Width (in.)


Air Tool Type
Air Nailer
Compressor/Air Tool Features
Fastener Depth Control
Cordless/ Corded
Energy Type
Fasteners included
No additional components or accessories are included
Loading type
Maximum Fastener Size
1-3/4 in
Minimum Fastener Size
3/4 in
Minimum Recommended Air Delivery SCFM @ 90PSI
Minimum Recommended Operating Pressure (psi)
Nail Gauge
NA / Other
Nailgun Angle
Tools Product Type
Air Compressor

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Customer Questions & Answers

Nails get stuck and trigger won't work

Asked by: Bonita
Oil the gun per the instructions...most people do not do the proper maintenance which will prevent most issues as such from developing but long term use will also wear them out an eventually need replaced. The reality is that unfortunately, they won't last forever. Try lubing the gun and using it and see if it goes away BUT, if you have failed to do the proper regular lube maintenance, you may have worn it out beyond any repair.
Answered by: Brian
Date published: 2016-07-25
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Customer Reviews

0-Gauge Super Roofer is rated 4.8 out of 5 by 28.
Rated 5 out of 5 by from Well Constructed Nailer Right out of the box you can tell this is a nailer of high quality. One of the features I like is they have a preset shingle gauge you can use while applying your courses. The gun also includes settings so you can adjust the strike force depending on nail length, and deck composition. You can adjust this on the gun as you are nailing rather than having to adjust the regulator on the air compressor. Very nice feature. The nailer did a great job feeding nails during a "rapid nail" simulation. No jamming or any other issues. Nailer is lightweight which saves on fatigue with continuous use.
Date published: 2014-03-11
Rated 5 out of 5 by from Excellent lightweight, durable coil roofing nailer. The Max SuperRoofer is extremely lightweight compared to other roofing nailers I have used in the past. The nailer is also well balanced. The nailer body appears to be very well constructed and should be durable enough to last a lifetime for the typical home handyman. Nail installation is simple. I did not have any major issues with jamming when nailing 2+ square of shingles to a utility shed as a test case. The instructions are easy to follow and all of the information with regard to nail type and size is included in the packaging. As noted in other reviews the SuperRoofer nailer is threaded with a 1/4" female thread for your choice of fitting. I would recommend this roofing nailer
Date published: 2013-11-06
Rated 5 out of 5 by from Small. Powerful. Well built. This roofing nail gun is called a Super Roofer for a reason. It is small and light weight but can pack a punch. Roofing mom's house provided a good test for this small nail gun. It is not tiring on the arm because of it's light weight. Easy to load the coil of nails, and did not jam once. Easy to use for a non-professional as well as a professional. Trigger is not so sensitive that beginners double-tap nails, but a professional can fly with it. My husband (non-professional) and his friend (professional roofer) used it to roof mom's house and both liked the feel and the quality of the tool.
Date published: 2013-10-20
Rated 5 out of 5 by from Lightweight, but heavy duty First thing you'll notice with this roofing nailer is the weight, about 5 pounds. There isn't a huge difference from other nailers (there is actually a bostich which is 4), but it is a very comfortable weight, and well balanced. Especially important after you've dragged it around a roof for a couple hours. A few features of note: 1. standard 1/4" air intake - interchangeable with many other air tools (though oddly not the Max Super Framer) 2. depth adjustment on gun 3. quick trap releases opens magazine and nose 4. takes full range of nail sizes (up to 1 3/4") 5. shingle guide in the tail 6. free pair of safety goggles (I appreciate the though) I thought the depth adjustment was the nicest touch. My framing nailer has a similar adjustment, and it makes life much easier. Even more so if you are on a steep roof 50 feet from your compressor adjustment. Final note, very nice rubber handle. My old nailer doesn't have much grip left, so it was a pleasant surprise to feel how nice the felt in my hand. Maybe a small thing, but if you don't always wear gloves, it's nice.
Date published: 2014-03-11
Rated 5 out of 5 by from The best roofing coiler I've used yet! Simply the best roofing coiler I've used yet! Packaging: Unit came well packaged & included eye protection. The outside of the packaging was very informative; illustrating key information about nail types, sizes, etc... Set-up: The nailer is threaded with 1/4" female thread for your choice of air fitting. I installed a swivel, I/M fitting to work with my existing hoses. Nail Installation/Type: One lever, located on the left side of the nail gun, allows access to the magazine chamber & feed pawl. This SuperRoofer accepts 15° wire-welded, coiled roofing nails ranging in length from 3/4" to 1-3/4"; .120" shank diameter; .413" head diameter; smooth or ring shank type. The inner magazine features a 4-position nail support spool. Special Features: This nail gun features a driving depth adjustment to allow the user some varying control over the nail without the need to adjust air pressure settings at the tank. This featured worked GREAT while dialing the gun in on rooftop. Another useful feature is the trigger lock mechanism; after a little practice it was an easy one-handed operation. Rubberized grip makes for easy handling & tried as I might, I could not get it to slip or twist on the gun handle. Shingle Exposure: Yes, it has an ADJUSTABLE shingle exposure gauge. Quite handy. Trip Mechanics: Hold the trigger in & every time the tip makes contact with the shingle, it shot. The way this gun was setup out of the packaging, I was able to swiftly drop nails into shingles all down the line. The gun is able to me modified using optional kit(s). After nailing an entire roof, I only hand 1 hang-up with the nails & it was the fault of a badly placed/welded nail on the coil. Conclusion: At just over 5 lbs, this SuperRoofer was a pleasure to work with and performed without flaw for an entire roof job. This is my new go-to coil roofer suitable for a DIY guy, like myself, or roofing professional alike!
Date published: 2013-10-30
Rated 5 out of 5 by from A must for any Roofer !!! It was cold out and I still wanted to test this gun, so I decided to re-roof my storage shed with leftover shingles from the house so they would match. The roof was a little less than 2 square’s.(about 180 sq.ft.) Total time for the prep, roof and cleanup was less than 3 hours, including going in the house to get another cup of hot coffee, This is a nice roofing nailer, Came well packed in the box so no damage was done to the unit, also included safety goggles and the allen wrench for adjusting. The box also contained any info you need for correct nails and sizes. I promptly cut out the chart so it could be thumbtacked to my shed wall where I will keep the gun. I also like to use my phone and take pics of any info like this for my tools so I always have it with me. The gun loaded easily, fed well, drove nails like it was designed to and operated flawlessly for the small amount of time it took to re-roof the shed. The aspect I liked best about the gun was stability, as someone else mentioned it gives you a nice steady platform for pushing yourself to get up making it much easier. Overall it is a well designed and well executed product that feels and looks like it will provide years of service to any DIYer or PRO. Even loaded the gun was well balanced and lighter to use than others I’ve owned and at a fair price for something I think will last a very long time.
Date published: 2014-03-05
Rated 5 out of 5 by from Very Nice Roofing Nailer This is an overall great roofing nailer, since its in the middle of the pack for what you can spend, this delivers great bang for the buck. The gun has great balance and its easy to handle. This gun is heavy enough to set the longest nails but not so heavy that your wrist and hands are worn out at the end of the day. I like the configuration of the combination foot shingle exposure guide. Its bigger than most guns so you can use the nailer to push on when you stand up. Some are so small the gun will roll out under your hand. I love the shingle grips that they put on the sides of this gun, they are metal and grip roofing great. This gun stays put when you lay it down even on a 6 - 12 pitch. I had a few different coils of nails from various manufactures and had no problem running all of them thru the gun. I love that its not picky. I had some high wire nails and those can be a problem but not for this gun. I have big hands so some trigger locks are a two handed affair, this one is easy for me to get to with just one hand and switch between locked and unlocked without adjusting my grip on the handle. Every tool needs parts at some point, so I always consider this when I buy new tools. Max parts are easy to get. They have a great website for parts and most parts that may need replacing are available at a very reasonable cost. The gun only has one downside, the exhaust is not adjustable so if you are up against a wall you may get some blowback of air and debris. Overall a super nice gun that should last many years for the pro and the advanced DIYer.
Date published: 2014-03-02
Rated 5 out of 5 by from Awesome nailer... First off, I am not a pro roofer...just a run of the mill get it done guy with tons of experience. I have used one other brand be unmentioned...but that experience was not a good one. Now I move forward to this Max unit and it has surpassed my expectations. Firstly, it does come with goggles that is a nice thought to protect the only pair of eyes that you ever have. It does not come with a quarter inch fitting but I recommend using a swivel fitting for when you whip around the air hose. I used ring shank 1-1/4" nails and had no issues through the 6 thousand or so I spit out. The adjustment is nice and can help to adjust the depth for use installing vinyl siding where they need to remain somewhat loose for expansion and contraction with temperature as vinyl moves. It has a rapid fire only trigger which could be difficult for that task but I'll give it a try in the next month or so. It works very, very well as advertised, I would like the option to have rapid fire or single shot but it's rapid for a reason to speed up shingle installation. I wish a manufacturer would include some sort of belt clip for when you take a breather on a steep roof so you are not grasping the whole time. The tool feels well balanced both empty and with a full round, shoots hard and if you are not careful, can pop two nails at once due to rapid fire. It has a black magazine cover so you will not be able to see the nails you have left but you'll adjust to speed as you run out with a certain number of shingles or squares installed. I'll recommend this every day of the week to anyone looking to buy one. It's worth the investment if you are to embark in DIYing your own roof replacement and should pay for itself when you are finished. Go for it, buy one and enjoy...I used the cheapest ring shanks available and had no issues so be assured you can save money compared to expensive nails as I have...this is truly a nice unit
Date published: 2014-03-25
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