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Keep the battery family and access problem central
2625-20: compare it for straightforward compact M18 work
The 2625-20 is worth comparing when you already have suitable M18 equipment and need a compact reciprocating saw for appropriate scattered rough cuts. Its variable-speed trigger, quick blade clamp and onboard light make a straightforward task kit.
Check the 2719-20 FUEL model at the same time. Its brushless design and longer documented stroke are buying differences to weigh against the complete price. If your existing equipment is M12, compare the smaller-platform 2420-20 instead of assuming the batteries interchange.
The Milwaukee 2625-20 HACKZALL is a standard M18 compact reciprocating saw, distinct from the 2719-20 M18 FUEL version. It remains manufacturer-listed and had an identifiable new Amazon offer when checked. We are retaining the model and original URL rather than calling a product obsolete merely because it has been on sale for years.
This review concentrates on the access and power-system decision. A compact saw can be useful for a permitted cut where a conventional long body is inconvenient, but the blade, workholding and operating method still control the job.
Good reasons to consider it
- Uses the appropriate existing M18 battery collection
- Compact layout for access-sensitive tasks
- Keyless blade changes and variable trigger
- Manufacturer documents a dual-gear anti-vibration system
What to weigh before buying
- Not the brushless FUEL 2719-20 configuration
- Battery and charger are separate in the selected offer
- A compact saw does not replace every full-size demolition task
- No independent comparative vibration measurements here
2625-20 vs 2719-20 vs M12 2420-20
Swipe the table sideways on a phone.
| Product and buying link | Choose for | Key distinction | Check before buying |
|---|---|---|---|
| Milwaukee 2625-20 M18 HACKZALL | Standard compact cutting within an existing M18 kit | 3/4-inch stroke, variable trigger and QUIK-LOK clamp | Bare tool; compare total price with the 2719-20 FUEL model |
| Milwaukee 2719-20 M18 FUEL HACKZALL | Brushless compact M18 alternative | 7/8-inch stroke, pivoting shoe and dual-gear counterbalance | Bare tool; verify current seller and complete kit cost |
| Milwaukee 2420-20 M12 HACKZALL | Compact light-task kit in the M12 family | 1/2-inch stroke, variable trigger and onboard light | M12 batteries and charger required; different from M18 |
Compare within the battery family you already own when it suits the task. If starting from scratch, include approved packs and charging equipment in all three totals. A model number and motor label do not replace the access and workload decision.
Milwaukee 2719-20 M18 FUEL HACKZALL: Brushless compact M18 alternative
Compare the 2719-20 when its brushless configuration and pivoting shoe address your work. It is a distinct model, not an identical 2625 with a different sticker. The longer stroke is a specification difference; we do not claim a measured speed advantage in this review.
Milwaukee 2420-20 M12 HACKZALL: Compact light-task kit in the M12 family
The 2420-20 is the M12 alternative for a smaller-platform task kit. Its manufacturer lists a half-inch stroke, onboard light and keyless blade clamp. Choose it for an appropriate M12 kit and the intended cuts, while recognizing that it does not use M18 batteries.
Where the standard HACKZALL makes sense
A compact body is useful when the physical approach to a suitable cut matters more than maximum conventional-saw capacity. Think about the opening, the blade travel and where the required grip will fit. A tool that fits into storage is not necessarily easy to position at the actual work.
The 2625-20 can suit a focused renovation or service kit built around existing M18 batteries. You avoid carrying an extension lead to each appropriate cut and can keep the saw with the hand tools and blades used on that task.
We would choose the standard model when its controls meet the work and its complete offer is sensible. If repeated demanding cutting is the reason for buying, compare the FUEL alternative and a conventional full-size format before ordering.
The clamp and trigger are the daily-use features
Milwaukee documents a QUIK-LOK clamp for blade changes and a variable-speed trigger. These are useful setup controls. The clamp allows an appropriate blade change without a separate blade-change wrench; the trigger changes the stroke rate during the permitted operation.
Use the exact instructions to fit and verify the blade. A loose or partly seated shank is not corrected by choosing a slower trigger setting. Check the work contact and the complete moving clearance before reconnecting power.
The light helps you see a poorly lit area. It does not inspect behind the visible surface or establish that a pipe, wall or structural piece is safe to cut. Keep those decisions separate from the convenience of the tool controls.
A 3/4-inch stroke is a fit specification
The standard HACKZALL lists a 3/4-inch stroke and a maximum no-load trigger rate of 3,000 strokes per minute. The FUEL 2719-20 lists a 7/8-inch stroke, while the M12 2420-20 has a shorter listed stroke. These are distinctions to understand, not a complete cutting-speed ranking.
Blade design, material thickness, battery and support affect the result. Choose the blade’s intended material range before interpreting a stroke figure. A coarse wood blade and a blade for an approved metal thickness do not make the same cut.
The correct buying question is whether the tool and chosen blade suit the intended work. We have not timed the three saws or measured the difference on a standardized material set.
Anti-vibration design without a made-up comfort score
The maker identifies a dual-gear anti-vibration system on the 2625-20. That is a documented feature worth considering. We do not translate it into an independent vibration value or promise that every person will find the saw comfortable through a long project.
The working kit includes a battery and blade, and the work itself can change how the tool reacts. Compare the required handling with the actual approach to the cut. Keep the work supported and use the specified contact point and grip.
A compact tool can solve a positioning problem while still being the wrong choice for prolonged larger rough cuts. For that workload, a suitable conventional two-hand saw can be a more relevant comparison.
Price the M18 kit, not just the saw
The selected -20 listing is the bare tool. Add an approved M18 battery and charger if you do not already own appropriate equipment. Check the condition and compatibility of existing packs, and follow their own charging instructions.
M18 and M12 are different systems. A smaller M12 alternative may be attractive for a kit that already uses M12, but the platform name does not permit transferring its packs into this saw. Similar brand and color are not compatibility evidence.
Compare current seller, condition and warranty terms as well as the included items. A third-party battery bundle and a manufacturer kit are not automatically equivalent to the bare-tool offer.
Standard versus FUEL is a practical choice
The standard 2625-20 and FUEL 2719-20 remain separate buying options. The FUEL model adds a documented brushless configuration, pivoting shoe and different stroke. Those features should be weighed against the exact workload and total price.
Do not upgrade a functional tool solely because another model carries the FUEL name. Identify the limitation first: controls, access, worn equipment or the planned workload. An upgrade that removes no limitation may be less useful than an appropriate blade or better work support.
For a new purchase, inspect both exact models and use the comparison below to keep the differences visible. We have not established a universal performance winner.
Blade setup, workholding and maintenance
Identify the material and required clearance
Choose a blade approved for the tool and material thickness. Wood, embedded fasteners and metal call for different blade decisions. Check the required blade projection through the complete stroke rather than judging fit only while the tool is stationary.
Support the work using the method required by the instructions. Inspect concealed services and the implications of removal before a renovation cut. A compact tool does not make an uninspected wall or unsupported item safe to cut.
Isolate the tool before blade changes
Follow the battery-removal and blade-change procedure in the exact model manual. Verify full blade seating, inspect the contact parts and use the required grip and protective equipment. Keep hands and bystanders outside the blade travel and cutting area.
One-handed format describes the product layout; it is not permission to hold unsecured material beside the blade. Follow the operating instructions for the task, and stop when a clamp, control or other part is damaged or behaving abnormally.
Store a focused kit rather than a mixed pile
After isolation, remove debris using the maker’s approved cleaning method. Inspect the blade clamp and power connection, and service defects through an appropriate repair route. Do not lubricate or modify parts using generic advice for a different saw.
Store the tool dry with blades protected and labeled by material. Keep the battery and charger in their prescribed environment. Carry the accessories required for the next task so the compact saw remains part of a manageable kit.
2625-20 questions before buying
Is the 2625-20 obsolete?
It remains manufacturer-listed, and our October 2026 check found a new offer. Verify current stock and seller terms before ordering.
Is this the M18 FUEL HACKZALL?
No. The 2625-20 is the standard model. The 2719-20 is the separate FUEL comparison.
Does the bare tool include a battery?
The selected -20 offer is tool only. Confirm exact package contents; an approved battery and charger are separate unless a named kit includes them.
Will an M12 battery fit?
No. M12 and M18 are different platforms. Use the battery arrangement approved for the exact saw.
Can a compact saw be used for every demolition cut?
No. The material, blade, clearance, support and manual’s permitted method determine the operation.
Buy the compact format for a real access need
Compare the 2625-20 for straightforward M18 compact cutting at an appropriate complete cost. Check the 2719-20 for its FUEL feature set and the 2420-20 if the existing kit is M12.
Keep the original tool when it already meets the work safely. For a new purchase, match the battery family, blade and access before placing the order.
Research and editorial approach
Milwaukee manufacturer documentation and exact Amazon US model listings were checked in October 2026. These are original editorial judgments about controls, access and purchase costs. We have not personally conducted cutting-speed, runtime, vibration or durability tests. Stock, condition and seller packages can change.