The Milwaukee roofing nailer, sold as the M18 FUEL Coil Roofing Nailer (model 2909-20 bare, 2909-21 kit), is a cordless coil nailer built to drop the compressor and hose from roofing and light exterior work. It fires up to 6 nails per second and sinks up to 1,100 nails per charge on a REDLITHIUM HIGH OUTPUT CP3.0 pack, which is the fastest firing rate and the highest per-charge count among the mainstream 18V and 20V cordless coil nailers. Owners rate it 4.6 out of 5 across 207 Home Depot ratings. This is a single-model verdict, not a ranking. If you want the field compared head to head, see our best roofing nailer roundup and our best cordless roofing nailer picks.
Milwaukee M18 roofing nailer: the quick verdict
The Milwaukee M18 roofing nailer earns a buy for pros already on the M18 battery platform and for repair and small-install crews who want to skip the compressor. It leads its cordless class on two numbers that matter on a roof: 6 nails per second and roughly 1,100 nails per charge. The trade-offs are weight and price. At 7.25 lbs bare it is heavier than the DeWalt cordless, and at about $379 bare it sits at the top of the segment.
- Best for: M18 tool owners, service and repair crews, small to mid reroofs, and anyone doing both roofing and vinyl siding with one tool.
- Skip it if: you frame full production reroofs all day (a pneumatic coil nailer on a compressor still wins on all-day cadence and tool weight) or you are not invested in the M18 battery system.
- Owner sentiment: 4.6 out of 5 across 207 Home Depot ratings.
Milwaukee roofing nailer specs (2909-20)
The Milwaukee roofing nailer runs a POWERSTATE brushless motor and a nitrogen air spring, so there is no gas cartridge to buy and no compressor to drag up a ladder. The table below lists the published and independently reported specifications for the 2909-20 bare tool.
| Specification | Milwaukee M18 FUEL 2909-20 |
|---|---|
| Type | Cordless coil roofing nailer |
| Battery platform | M18 REDLITHIUM (18V), all M18 packs |
| Firing rate | Up to 6 nails per second (bump fire) |
| Nails per charge | Up to 1,100 on REDLITHIUM HIGH OUTPUT CP3.0 |
| Nail sizes | Coil roofing nails 0.75 in to 1.75 in |
| Drive system | Nitrogen air spring, POWERSTATE brushless, REDLINK Intelligence |
| Weight | 7.25 lbs bare, about 8.6 lbs with a 3.0Ah pack |
| Depth adjustment | Tool-free depth of drive |
| Notable features | Attachable vinyl siding tip, pivoting belt and scaffolding hook, dry fire lockout, replaceable rubber wear pads |
| Warranty | 3 year limited |
| Model numbers | 2909-20 (bare), 2909-21 (kit) |
Milwaukee’s product page does not publish the tool length, height, or coil capacity. Those figures live in the parts and operator documents, so we have left them out rather than estimate them. For how coil angle, collation, and depth setting affect a clean nail line, see our guide on choosing and setting a coil roofing nailer.
How many nails per charge and how fast does it fire?
The Milwaukee 2909 sinks up to 1,100 nails on a single REDLITHIUM HIGH OUTPUT CP3.0 charge and fires up to 6 nails per second in bump mode. In practical terms, 1,100 fasteners covers a large share of a repair day or a small install before a battery swap, and the 6 per second cadence matches the pace a roofer bumps across a shingle course. Independent bench testing by Pro Tool Reviews reported no firing delay and consistent driving power across rapid strings, describing it as a genuine pneumatic replacement for the jobs it is built for.
Firing rate is where this tool separates from its cordless rivals. Both the DeWalt DCN45RN and the Metabo HPT NV1845DA are rated at 3 nails per second, half the Milwaukee’s ceiling. Real-world speed still depends on shingle type, nail length, and how hard you push the pace, so treat 6 per second as a maximum, not a guaranteed field rate.
What nail sizes and jobs does it handle?
The Milwaukee roofing nailer accepts coil roofing nails from 0.75 in to 1.75 in, loaded through a tool-free adjustable baseplate inside the magazine. That range covers standard asphalt shingle fastening and most underlayment and drip edge nailing, and the tool-free depth dial lets you dial the head flush without overdriving through the mat. An attachable vinyl siding tip converts it for siding work, so one tool covers roofing and light exterior fastening.
It is built for repairs, tear-off and reroof patches, small to mid installs, and siding, not for all-day production framing volumes. If your nailing sits outside coil roofing fasteners, or you are speccing a full tool kit, our roofing tools and equipment list lays out what pairs with a nailer on a working crew.
Milwaukee roofing nailer vs DeWalt vs pneumatic
Against the DeWalt DCN45RN, the Milwaukee wins on speed and runtime and gives up ground on weight and price. Against a pneumatic coil nailer, the Milwaukee wins on setup and mobility and gives up all-day tool weight and the effectively unlimited shot count of an air line. The table compares the three on the specs a buyer actually weighs.
| Factor | Milwaukee M18 2909 | DeWalt DCN45RN (20V) | Pneumatic coil nailer |
|---|---|---|---|
| Power source | M18 battery | 20V MAX battery | Compressor and hose |
| Firing rate | Up to 6 per second | Up to 3 per second | Effectively unlimited |
| Nails per charge | Up to 1,100 (CP3.0) | Up to 500 (2.0Ah) | Unlimited (air-fed) |
| Weight | 7.25 lbs bare | 6.7 lbs assembled | Often 5 to 6 lbs tool only |
| Setup | Grab and go | Grab and go | Compressor, hose, fuel or power |
| Bare price (approx) | $379 | Segment mid | Tool often under $250 |
If the cordless case does not close for your crew, the pneumatic route hinges on the compressor as much as the gun. Our best air compressor for roofing guide covers what actually keeps a coil nailer fed on a roof. Pricing above is directional and moves with promotions and retailer; confirm the current number before you buy.
Pros and cons
The Milwaukee 2909 is a strong cordless coil nailer with two clear compromises: it is heavier and pricier than its nearest cordless rival. Here is the balance.
- Pro: Fastest cordless firing rate in its class at up to 6 nails per second.
- Pro: Roughly 1,100 nails per charge, about double the DeWalt cordless.
- Pro: No compressor, no hose, no gas cartridge to buy.
- Pro: Runs on the same M18 packs as the rest of the Milwaukee lineup.
- Pro: Vinyl siding tip, replaceable wear pads, and a 3 year warranty.
- Con: At 7.25 lbs bare it is heavier than the DeWalt cordless and most pneumatics.
- Con: Premium price, about $379 bare and $479 for the kit.
- Con: Not built to replace a pneumatic coil nailer on full-day production volumes.
Price and kit options
The Milwaukee roofing nailer sells as a bare tool (2909-20) for about $379 and as a kit (2909-21) with a battery and charger for about $479. Home Depot has listed the bare tool at $379, discounted from $449. Combo listings that pair the roofing nailer with an M18 framing nailer or add battery and wear-pad bundles also circulate, so shop the configuration, not just the model name. Prices move with promotions and retailer, so confirm the live figure before buying.
How we reached this verdict
This review is built from Milwaukee’s published specifications, independent bench testing reported by Pro Tool Reviews, and aggregated owner sentiment of 4.6 out of 5 across 207 Home Depot ratings. The Roofing Brief has not independently lab-tested this nailer, so we do not report first-hand drive counts or timed field trials. Where a figure was not published by Milwaukee, such as tool length or coil capacity, we left it out rather than estimate. For the full competitive picture, our best roofing nailer roundup ranks this model against pneumatic and cordless rivals.
Frequently asked questions
Is the Milwaukee M18 roofing nailer worth it?
For pros already on the M18 battery platform and for repair or small-install crews, the Milwaukee M18 roofing nailer is worth it. It leads its cordless class at up to 6 nails per second and about 1,100 nails per charge, and owners rate it 4.6 out of 5 across 207 Home Depot ratings. It is less compelling if you are not invested in M18 batteries or you run full-day production reroofs.
How many nails per charge does the Milwaukee roofing nailer get?
The Milwaukee 2909 sinks up to 1,100 nails on a single charge when paired with an M18 REDLITHIUM HIGH OUTPUT CP3.0 battery. That is roughly double the DeWalt DCN45RN’s rated 500 nails per charge on a 2.0Ah pack. Actual counts vary with nail length, shingle type, temperature, and battery health, so treat 1,100 as a best-case figure.
Can the Milwaukee M18 roofing nailer replace a pneumatic nailer?
For repairs, small to mid installs, and siding, the Milwaukee M18 roofing nailer can replace a pneumatic nailer, and independent testing described its driving power as a true pneumatic substitute for those jobs. For all-day production reroofs, a pneumatic coil nailer on a compressor still holds an edge on tool weight and effectively unlimited shot count.
What nail sizes does the Milwaukee 2909 use?
The Milwaukee 2909 accepts coil roofing nails from 0.75 in to 1.75 in, loaded through a tool-free adjustable baseplate in the magazine. That range covers standard asphalt shingle fastening plus most underlayment and drip edge work. A tool-free depth of drive dial lets you set the head flush without overdriving through the shingle mat.
Does the Milwaukee roofing nailer do vinyl siding?
Yes. The Milwaukee M18 roofing nailer ships compatible with an attachable vinyl siding tip that converts it for siding installation. That makes it a two-job tool for crews that do both roofing and light exterior work, one of the reasons it appeals to service and repair operations rather than single-trade production crews.
Milwaukee vs DeWalt cordless roofing nailer: which is better?
The Milwaukee 2909 fires faster (up to 6 versus 3 nails per second) and runs longer per charge (about 1,100 versus 500 nails) than the DeWalt DCN45RN. The DeWalt is lighter at 6.7 lbs assembled. Choose on your battery platform and priorities: speed and runtime favor Milwaukee, weight favors DeWalt. Our best cordless roofing nailer guide compares both in context.
Reviewed by The Roofing Brief Team. Last reviewed August 2026.