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Is the 2625-21 compact or full size?
The exact page names the 2625-20 M18 HACKZALL, and its product page/manual describe a compact one-handed saw with a 3/4-inch stroke. That is a different format from the full-size 2621-20 or 2722-20, not a performance ranking.
Explore this need in the finder →What battery and charger are listed in the 2625-21 package?
The exact manufacturer box list names one 48-11-1828 M18 XC extended-capacity battery and one 48-59-1812 M18/M12 charger, with the 2625-20 saw and contractor bag. It does not list a blade. Confirm the full -21 suffix against the seller’s list.
Explore this need in the finder →How does 2625-21 differ from 2625-21CT?
Both exact pages name the 2625-20 saw, 48-59-1812 charger and contractor bag. The -21 page lists XC extended-capacity battery 48-11-1828; the -21CT page lists compact battery 48-11-1815. No runtime comparison is inferred.
Can a maximum bare-tool weight be checked for the 2625-21?
The exact 2625-20 sources reviewed do not state bare-tool weight. A compact-format description is not a numeric specification, so a strict weight ceiling cannot be confirmed.
Explore this need in the finder →A compact saw with a real M18 starter package
The Milwaukee 2625-21 is the kit version built around the 2625-20 HACKZALL. Milwaukee's exact U.S. Spanish product page identifies the included saw as 2625-20 and lists a battery, charger and contractor bag. The saw itself is the compact, one-handed format, rather than the longer two-handed SAWZALL shape. That can make access and grip the first questions to answer, but a one-handed label is not permission to cut unsupported material or to hold a workpiece in the other hand.
The exact 2625-20 manual lists an 18-volt M18 supply, 0–3,000 no-load strokes per minute and a 3/4-inch stroke. These are published tool specifications, not a time-to-cut result. The shorter stroke is an identity difference from the full-size 2621-20 and 2722-20, not proof by itself that this kit is the more controlled or more productive choice. Match the saw's body and access to the work, then assess the blade, support and the operator's ability to maintain control.
Battery, charger and bag—no case
The -21 kit page enumerates four items: the 2625-20 saw, an M18/M12 multi-voltage charger (48-59-1812), one M18 REDLITHIUM XC extended-capacity battery (48-11-1828), and a contractor bag. It does not list a hard carrying case or a blade. The battery is identified by a part number and product family, but this page does not quantify its amp-hour capacity. This review therefore does not convert the family name into a runtime estimate or claim that one pack will cover a day of repeated cutting.
The related 2625-21CT is a separate package, not a cosmetic suffix: its exact page lists the same 2625-20 saw and charger but an M18 compact battery, part 48-11-1815, plus a contractor bag. The -21 and -21CT are both M18 battery-and-charger kits, yet the documented battery family differs. Buyers should decide whether an extended-capacity or compact pack is more relevant to their existing equipment and planned work, without assuming that either exact pack is included in a seller's listing unless the full suffix and box list agree.
What the included saw documents
The exact 2625-20 manual describes a QUIK-LOK clamp for 1/2-inch universal HACKZALL and SAWZALL blades and an LED that illuminates when the trigger is pulled. Milwaukee also names a Dual Gear Anti-Vibration System. That is a manufacturer-described design feature; the available sources do not supply an independent vibration reading or a comparative comfort study. The reviewed page and manual do not establish a brushless motor, a numeric bare-tool weight, an adjustable shoe, an orbital selector, a hang hook or an overall length.
Blade fit deserves more attention than the kit photograph. Milwaukee's manual warns against blades shorter than 3-1/2 inches and instructs users to remove the battery before changing a blade, lock the blade securely, keep the shoe flat against the work and maintain sufficient blade projection through the stroke. For a plunge or blind cut, it directs the user to check for concealed gas pipes, wiring and water pipes. Secure material before cutting and use appropriate protection for the material, dust and environment. Neither the included battery nor a compact format changes those requirements.
How it compares with the nearby choices
The 2625-21 differs from the 2625-20 in what arrives with the saw, not in the model of saw itself. The -20 page is tool-only; the -21 adds the documented M18 battery, multi-voltage charger and bag. Against the 2625-21CT, the important evidence-backed distinction is the included XC extended-capacity battery versus the CT's compact battery. Against the 2621-21 full-size package, the HACKZALL is explicitly a compact one-handed tool with a 3/4-inch stroke rather than the full-size 2621-20 saw with a 1-1/8-inch stroke.
Those comparisons are about format, published specifications and included package contents, not observed cutting performance. If the non-negotiable need is a battery and charger, the -21's in-box list is affirmative evidence. If the requirement is a known low weight, adjustable shoe, orbital action or a blade in the package, the reviewed exact sources do not substantiate that requirement. The box list's silence on a blade should be treated as a check to make, not as permission to assume a blade is included.
Who should examine this package
This kit is most relevant to someone seeking the compact M18 one-handed reciprocating-saw format who wants the saw, a charger, one documented XC battery and a soft contractor bag. Its advantage over a bare-tool purchase is package completeness, not a substantiated performance boost. It is less compelling if the user already owns an appropriate M18 charger and battery and values a hard case, an included blade or a proven weight target. The exact manufacturer's listing is the better reference for kit contents than a retailer thumbnail.
Check the complete 2625-21 model code, verify the listed battery part and read the seller's package details. The saw shares the operating instructions of the included 2625-20; it does not acquire undocumented capabilities from another HACKZALL or SAWZALL model. This is a source-based assessment only. No hands-on use, measurement, runtime test, cut test or ownership experience is claimed.
Key specifications
Key details at a glance
| Saw format | Compact, one-handed saw |
|---|---|
| Power source | Cordless battery |
| Battery platform | Milwaukee M18 |
| Stroke length | 0.75 in |
| No-load stroke rate | 3000 SPM |
| Tool-free blade change | Yes |
| Work light | Yes |
| Battery in this package | Yes |
| Charger in this package | Yes |
Use the exact model’s instructions for operating limits, supplied equipment and version differences.
Sources for this review
Sources for this assessment
Match the saw to your actual work.
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