By The Roofing Brief Team. Last reviewed: October 2026.
A magnetic roofing hammer is a roofing hatchet with a magnet set into the striking face, so a roofer can place and start a roofing nail or a felt cap nail with one hand instead of pinching each nail. The reference model, the AJC 005-MH Mag-Hatch, has a 17 oz head, a shielded neodymium magnet on the face, a sliding gauge and a built-in utility blade, and listed at $69.68 to $76.99 on October 19, 2026. The other verified options are the Stiletto LATHAXE10-F (10 oz titanium, 3 magnetic nail starters, $129.99), the Big Horn 15111 cap nail hammer (16 oz, $32.29 to $42.95), the Estwing E3-239MM Latthammer (21 oz with magnet) and the $12.99 Boss Hammer Magnetic Cap that adds a magnet to a hammer you already own.
What is a magnetic roofing hammer?
A magnetic roofing hammer, also called a magnetic roofing hatchet, is a hand tool for fastening asphalt shingles and underlayment. Ironworker Tools’ listing for the AJC 005-MH describes “the powerful, shielded neodymium magnet” sitting “right on the striking face,” with a sliding gauge, built-in utility blade and nail claw in a 17 oz tool. The opposite end is a hatchet blade for cutting and splitting shingles.
The magnet matters most on steep pitches and in wind: setting the nail on the face, tapping it home and reloading keeps one hand free for the shingle or a roof bracket. The nails it starts are the ones IRC R905.2.5 requires for asphalt shingles: galvanized steel, stainless, aluminum or copper roofing nails with a minimum 12-gauge shank and a 3/8 in head, long enough to reach 3/4 in into the sheathing or through it, per IRC 2021 Chapter 9. Those steel heads are what a face magnet holds.
Magnetic hammer vs roofing hatchet vs magnetic cap
These three terms get mixed up. A magnetic roofing hatchet is one tool with a magnetic striking face on one end and a cutting blade on the other; “magnetic roofing hammer” usually means the same tool. A magnetic cap, such as the Boss Hammer Co. Magnetic Cap, is a separate accessory that friction-fits over a standard hammer face, and a cap nail hammer has a magnetic slot shaped for plastic or steel cap nails.
- Magnetic roofing hatchet: one tool, magnetic face plus hatchet edge, gauge and often a utility blade. The AJC 005-MH (17 oz) and Roofmaster item 357105, listed by Roofmaster as a “17oz Magnetic Hatchet with Slide Gauge,” are examples.
- Magnetic cap accessory: the Boss Hammer Co. Magnetic Cap is $12.99, made in USA, sized 1.25 in, 1.375 in or 1.5 in to fit the hammer face, and “not intended for driving framing nails.”
- Magnetic cap nail hammer: the Big Horn 15111 has a 16 oz forged steel head with a magnetic cap nail holder for plastic and metal cap nails on felt, synthetic underlayment and house wrap.
Key features to compare
Five specs separate magnetic roofing hammers: the magnet (how many, and whether it is shielded), head weight, handle material, the cutting blade, and the shingle gauge. The verified models on this page run from a 10 oz titanium head (Stiletto) to a 21 oz steel head (Estwing E3-239MM), and the weights below come from each maker or retailer listing.
- Magnet: AJC uses one shielded neodymium magnet on the face; Stiletto lists 3 magnetic nail starters “for better reach”; Estwing sells the Latthammer with or without a magnet (E3-239MM vs E3-239M).
- Head weight: 10 oz titanium (Stiletto, which says it “hits like a 16oz steel hammer”), 16 oz (Big Horn 15111), 17 oz (AJC 005-MH), 21 oz (Estwing E3-239MM).
- Handle: hickory on the AJC 005-MH, a 13.5 in fiberglass handle on the Stiletto, and one-piece forged steel with a Shock Reduction Grip on Estwing.
- Blade: Estwing lists a 1.8125 in cutting edge with a replaceable blade on the E3-CA; AJC adds a built-in utility blade for underlayment.
- Sliding gauge: the Estwing E3-CA gauge sets 4 in, 5 in and 5-5/8 in exposure; 5-5/8 in matches the common exposure of metric-size laminated shingles and 5 in matches standard 12 x 36 in three-tab.
Top magnetic roofing hammers and hatchets compared
The table is an editorial selection of named models with published specs, not a test ranking. Prices are listings captured on October 19, 2026 from the named seller or through Google Shopping; tool prices change often, so confirm before buying.
| Model | Type | Head weight | Handle | Notable features | Price seen, Oct 19 2026 | Source |
|---|---|---|---|---|---|---|
| AJC 005-MH Mag-Hatch | Magnetic hatchet | 17 oz | Hickory | Shielded neodymium face magnet, sliding gauge, utility blade, nail claw; made in USA | $69.68 (D7 Supply) to $76.99 (Ironworker Tools) | Ironworker Tools, D7 Supply |
| Big Horn 15111 | Magnetic cap nail hammer | 16 oz forged steel | Fiberglass, per Helton Tool and Home | Magnetic cap nail holder, curved claw | $32.29 (Opentip) to $42.95 (Helton) | Helton Tool and Home |
| Boss Hammer Magnetic Cap | Magnetic cap accessory | Fits 10 oz to 28 oz hammers in 3 sizes | N/A | Friction fit, magnet molded into the cap, not for framing nails | $12.99 | Boss Hammer Co. |
| Roofmaster 357105 | Magnetic hatchet | 17 oz | Not listed | Slide gauge; roofing supply-house brand | Out of stock on Roofmaster | Roofmaster |
| Unbranded 17 oz magnetic hatchet | Magnetic hatchet | About 17 oz | Wood | Generic copy of the gauge-and-blade layout | From $18.40; one xinyoec listing at Home Depot showed $138.00 | Google Shopping |
| Estwing E3-CA Shingler’s Hammer | Non-magnetic shingler’s hammer | 2.63 lb total tool weight | One-piece forged steel, Shock Reduction Grip | No magnet listed; milled face, 1.8125 in replaceable blade, gauge for 4, 5, 5-5/8 in; made in USA | $37.99 (Ace Hardware) | Estwing |
| Estwing E3-239MM Latthammer | Magnetic roofing hammer (German pattern) | 21 oz / 600 g | Solid steel, Shock Reduction Grip, 13 in overall | Milled face with magnet; E3-239M is the same tool without a magnet | Not captured | Estwing |
| Stiletto LATHAXE10-F | Magnetic hatchet | 10 oz titanium; 20 oz total | 13.5 in fiberglass | 3 magnetic nail starters, milled face, open blade; 45% less weight than steel per Stiletto | $129.99 (Acme Tools) | Stiletto |
| Martinez M1 15 oz | Framing hammer | 15 oz steel head | Titanium handle | Magnetic nail starter, replaceable head and grip; a framing tool used for detail work | $332.92 to $384.84 (Martinez Tool Co.) | Martinez Tool Co. |
The AJC 005-MH is the reference tool because it puts the magnet, a sliding gauge and a utility blade in one 17 oz hatchet. If you already own a 16 oz or 18 oz steel hammer, the size 1 Boss Magnetic Cap adds a magnet for $12.99. For felt and synthetic underlayment with cap nails, the Big Horn 15111’s cap nail holder is shaped for the cap, which a flat face magnet is not.
Premium picks: Estwing, Stiletto, and Martinez
Three premium makers cover different priorities: Estwing for one-piece forged steel made in the USA, Stiletto for a titanium hatchet that cuts swing weight, and Martinez for a framing hammer with a replaceable head. Stiletto and Martinez carry magnetic nail starters; Estwing puts a magnet on the E3-239MM Latthammer but lists none on the E3-CA Shingler’s Hammer.
Estwing: the E3-CA Shingler’s Hammer is one-piece forged American steel with a milled face, a Shock Reduction Grip, a 1.8125 in replaceable cutting blade and a gauge adjustable for 4, 5 and 5-5/8 in exposure; Estwing gives 2.63 lb total weight and 12.5 in overall length, and Ace Hardware listed it at $37.99. For a magnet from Estwing, the E3-239MM Latthammer has a 21 oz head, a milled face and a magnet in the head.
Stiletto: the LATHAXE10-F has a 10 oz solid titanium head, a 13.5 in fiberglass handle and 3 magnetic nail starters; Stiletto lists 20 oz total weight and says it hits like a 16 oz steel hammer with 45% less weight. Acme Tools listed it at $129.99 on October 19, 2026, which makes titanium the upgrade for hand-nailers limited by elbow or wrist fatigue.
Martinez: the M1 is a 15 oz framing hammer with a titanium handle, a replaceable milled steel head and grip, and a magnetic nail starter, so a worn face is replaced instead of the whole tool. Martinez Tool Co. listed the M1 15 oz from $332.92 to $384.84 depending on finish. It has no shingle gauge, so it suits roofers who also frame and trim.
Best for: Estwing E3-CA suits crews that want a forged gauge-and-blade hatchet under $40 and do not need a magnet; Stiletto LATHAXE10-F suits high-volume hand-nailers fighting fatigue; Martinez M1 suits detail-focused roofers who want a rebuildable head. If a magnet is optional for you, our guide to the best roofing hammers and shingle hatchets compared covers non-magnetic models side by side.
Disclosure: The Roofing Brief has not tested these tools. Picks and specs are compiled from manufacturer product pages, retailer listings and published prices as of October 2026, and the order is editorial, based on published specs, features and price.
Best magnetic roofing hammer by use case
Match the pick to your main job; each row names one model and the spec that decides it.
| Use case | Best tool type | Named pick | Why |
|---|---|---|---|
| All-day shingle hand-nailing | Full magnetic hatchet with gauge | AJC 005-MH | 17 oz head, face magnet, gauge and utility blade in one tool |
| Fatigue or elbow strain | Titanium hatchet | Stiletto LATHAXE10-F | 10 oz titanium head that Stiletto rates like 16 oz steel |
| Felt and synthetic underlayment | Magnetic cap nail hammer | Big Horn 15111 | 16 oz head with a holder shaped for plastic and metal cap nails |
| Upgrade a hammer you own | Snap-on magnetic cap | Boss Hammer Magnetic Cap | $12.99, three face sizes from 1.25 to 1.5 in |
| Detail and trim work, buy once | Premium framing hammer, magnetic starter | Martinez M1 15 oz | Replaceable steel head and grip |
| Heavy one-piece steel with a magnet | German-pattern latthammer | Estwing E3-239MM | 21 oz head, magnet, made in USA |
How much does a magnetic roofing hammer cost?
A magnetic roofing hammer cost $12.99 to about $130 in October 19, 2026 listings, before the $333-plus Martinez framing hammer. A Boss Magnetic Cap is $12.99, unbranded 17 oz magnetic hatchets start around $18.40, the Big Horn 15111 cap nail hammer listed at $32.29 to $42.95, the AJC 005-MH at $69.68 to $76.99, and the Stiletto LATHAXE10-F titanium hatchet at $129.99.
Price tracks three things you can check on the listing: whether the magnet is shielded and recessed (the AJC 005-MH listing says it is), the handle (replaceable hickory on AJC, one-piece steel on Estwing, fiberglass on Stiletto), and whether a gauge and utility blade are built in. The roughly $50 gap between an unbranded 17 oz hatchet and the AJC buys the named maker, a made-in-USA tool and replacement handles that Ironworker Tools sells separately.
How to choose the right magnetic roofing hammer
Match the tool to your main task and how much you nail by hand. A roofer hand-nailing shingles all day wants a full magnetic hatchet with a gauge; a homeowner tacking down felt wants a cap nail hammer or a $12.99 magnetic cap on a hammer they own. For covering a whole deck faster, our ranking of cap staplers for roofing underlayment covers airless hammer tackers and pneumatic models.
- Define the job: shingle nailing favors a hatchet with a 4, 5 or 5-5/8 in gauge; underlayment and cap nails favor a magnetic cap nail hammer like the Big Horn 15111.
- Pick a head weight: 16 oz to 17 oz steel (Big Horn, AJC) is the common middle; 10 oz titanium (Stiletto) for fatigue; 21 oz (Estwing E3-239MM) for fewer swings.
- Choose a handle: hickory for field replacement, fiberglass for weather, one-piece steel for no loose heads.
- Confirm the extras: a replaceable blade (Estwing lists 1.8125 in) and an adjustable gauge.
- Decide new tool or accessory: if your hammer face is 1.25, 1.375 or 1.5 in across, a Boss Magnetic Cap in the matching size is the cheapest upgrade.
How to use a magnetic roofing hammer
Using a magnetic roofing hammer is a place, start, drive rhythm that keeps one hand free for the shingle. IRC R905.2.6 requires the number of fasteners the shingle maker specifies, but not less than four fasteners per strip shingle or two per individual shingle, with special fastening methods above 21:12 slope, so the count per shingle matters as much as the swing.
- Load a 12-gauge, 3/8 in head roofing nail (IRC R905.2.5) onto the magnetic face so the head sticks and the point faces the deck.
- Place the point in the shingle maker’s nailing zone, holding the shingle with your free hand; use at least four nails per strip shingle (IRC R905.2.6), more where the maker’s high-wind pattern calls for it.
- Tap once to set the nail, then drive it flush with the shingle surface in one or two firm strikes.
- Check the depth: the head should sit flush, not cut into the mat and not standing proud; the shank should reach 3/4 in into the sheathing or through it.
- Trim with the hatchet edge or utility blade, and set the gauge to the next course exposure, for example 5-5/8 in for metric laminated shingles.
Over-driving is the most common hand-nailing mistake and a frequent cause of nail pops on shingles. Nail length, shank and head rules under IRC R905.2.5 are in our guide to roofing nail sizes, types and code.
Do roofers still hand nail? Magnetic hammer vs coil nailer
Crews that run pneumatic coil nailers on open field areas still use a hatchet for ridge caps, step flashing, tight valleys and repairs, and a 16 oz to 17 oz magnetic hatchet makes those one-off nails one-handed. The comparison below uses the tool prices above; nailer setup costs depend on the compressor and hose you already own.
| Factor | Magnetic roofing hammer | Coil roofing nailer |
|---|---|---|
| Speed on open field | Slower, one nail per swing | Fastest, rapid fire |
| Nail depth control | High, you feel each nail | Depends on pressure and depth setting |
| Setup and cost | $12.99 to about $130, no compressor | Nailer plus compressor and hoses |
| Best for | Details, ridge, repairs, felt and cap nails | Large field areas, production crews |
If you run a nailer, depth setting decides whether nails meet the flush rule; see the guide to the coil roofing nailer. For counting fasteners on any job, the primer on how many roofing nails per square keeps your order and your driving pattern honest. Asphalt shingles’ share of U.S. roofs, the reason hand shingle tools stay in the truck, is tracked in our roofing material market share report. New to the trade tools and terms? Start with the basics at Learn About Roofing, or size up the full kit in our guide to roofing tools and equipment.
Related: Best Magnetic Nail Sweeper for Roofing (2026): Ranked
Frequently asked questions
What is a magnetic roofing hammer used for?
A magnetic roofing hammer is used to fasten asphalt shingles, roofing felt and cap nails by hand. The magnet on the striking face holds a steel roofing nail so you start it with one hand while the other holds the shingle. On a hatchet such as the 17 oz AJC 005-MH, the blade cuts shingles, the utility blade trims underlayment and the sliding gauge sets course exposure.
What is the difference between a roofing hatchet and a roofing hammer?
A roofing hatchet has a striking face on one end and a cutting edge on the other, so it drives nails and cuts shingles in one tool; Estwing’s E3-CA, for example, has a 1.8125 in replaceable blade and a 4, 5 and 5-5/8 in gauge. A roofing hammer drives and pulls nails but does not cut. Most magnetic roofing hammers are technically hatchets.
How much does a magnetic roofing hammer cost?
October 19, 2026 listings ran from $12.99 for a Boss Hammer Magnetic Cap that fits a hammer you own, about $18.40 for an unbranded 17 oz magnetic hatchet, $32.29 to $42.95 for the Big Horn 15111, $69.68 to $76.99 for the AJC 005-MH, and $129.99 for the Stiletto LATHAXE10-F titanium hatchet.
Are magnetic roofing hammers worth it?
For anyone hand-nailing shingles or felt, usually yes, because starting a nail one-handed frees the other hand on a pitched roof. If you rarely nail by hand, a $12.99 Boss Magnetic Cap on a hammer you already own adds the magnet for far less than a $70-plus dedicated hatchet.
What is the best magnetic roofing hatchet brand?
It depends on the priority. AJC (005-MH, 17 oz) for a magnetic shingler’s hatchet with a gauge; Stiletto (LATHAXE10-F, 10 oz titanium, 3 magnetic nail starters) for low swing weight; Estwing (E3-239MM, 21 oz with magnet) for one-piece forged steel; Martinez (M1, 15 oz) for a replaceable head. For felt and cap nails, the Big Horn 15111 cap nail hammer fits better than any hatchet.
What weight roofing hatchet is best?
16 oz to 17 oz steel heads, such as the Big Horn 15111 and AJC 005-MH, are the common middle. Stiletto’s 10 oz titanium head is rated by Stiletto to hit like 16 oz steel at 45% less weight, and Estwing’s 21 oz E3-239MM drives in fewer swings but weighs more over a full day.
Does the magnet on a roofing hammer wear out?
Makers that address it shield or recess the magnet, as in the shielded neodymium magnet on the AJC 005-MH face. What usually fails first on a cheap tool is a magnet that chips or loosens under impact. Keep the face clean of grit and rust, and check that a replaceable head or handle is sold for your model.