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Milwaukee Press Tools: M12 vs. M18, Jaws & Compatibility

Milwaukee's current press-tool lineup spans compact M12 and higher-capacity M18 FORCE LOGIC platforms, plus specialized M18 configurations. The useful comparison is not simply battery voltage: it is the fitting systems, sizes and attachment families each tool can actually support.

Current vs. legacy matters

Milwaukee's 2026 matrix identifies 2573-20 as the current M12 FORCE LOGIC press tool and lists 2473-20 as discontinued. It identifies 2922-20 as the current standard M18 FORCE LOGIC press tool and lists 2673-20 and 2773-20 as discontinued in that standard family.

That does not mean every legacy attachment is obsolete. It means compatibility should be checked against the exact model generation rather than inferred from the M12 or M18 badge alone.

Current Milwaukee press-tool families at a glance

FamilyCurrent model contextBest fitExamples of documented system coverage
M12 FORCE LOGIC2573-20; 2473-20 listed as discontinuedCompact access and common service sizesProPress/ProPressG to 1-1/4 in.; MegaPress/MegaPressG to 1 in.; selected PEX and ACR systems
M18 FORCE LOGIC standard2922-20; 2673-20 and 2773-20 listed as discontinuedBroader capacity and standard M18 jaw/ring familiesProPress / XL systems through 4 in. where specified; MegaPress through 2 in.; broader standard attachments
M18 Long Throw2773-20L listed in the current matrix; older 2673-20L discontinuedSpecialized large-size ring applicationsApplication-specific large-diameter systems; verify matrix and required ring family
M18 Short Throw2674-20 appears in the current matrixSpecialized compact M18 press applicationsSelected fitting systems and size ranges only; not a substitute for the standard 2922

M12 vs. M18: choose by the largest required connection

The M12 is compelling when its system-specific ceiling covers the entire job. Milwaukee describes the 2573 as an in-line tool for copper, PEX, black iron, stainless steel and ACR applications, with a 180-degree rotatable head, auto-cycle and ONE-KEY reporting. But those general material claims still have to be narrowed to the actual fitting system and attachment family.

The standard M18 2922 is the more natural platform when larger CTS sizes, 2-inch MegaPress work or broader standard-family rings are expected. Milwaukee states that the 2922 family supports fitting systems up to 4 inches depending on material and system, and its current matrix maps the required M18 jaws/rings for each fitting family.

Choose M12 when…

  • Tight access and one-handed in-line use are frequent priorities.
  • Your largest verified fitting-system size stays within M12 limits.
  • You already own M12 batteries and approved M12 attachments.
  • You want a compact press tool without moving to a larger platform unnecessarily.

Choose M18 when…

  • The job includes larger ProPress/XL or standard-series ring work.
  • MegaPress requirements exceed the M12 1-inch limit.
  • You need the broader standard M18 attachment ecosystem.
  • Your workflow favors one press platform across a wider size range.

Milwaukee jaw and ring families are system-specific

Milwaukee's current compatibility matrix separates CTS-V, IPS-P, ACR/refrigeration and PEX attachment paths. It also shows where selected RIDGID or other third-party attachment families are listed. That is more useful than a generic statement that a tool “presses copper” or “presses black iron.”

ApplicationM12 2573 pathM18 2922 pathWhat to verify
ProPress / CTSM12 CTS-V jaws/rings; selected listed cross-brand jawsM18 CTS-V jaws/rings, including XL ring pathsExact fitting line, size and direct jaw vs. ring requirement
MegaPress / IPSM12 IPS-P through the matrix's compact size limitM18 IPS-P to larger standard sizesCarbon steel vs. other fitting variants and ring/actuator requirement
PEXSystem-specific compact jawsSystem-specific standard jawsPureFlow vs. ASTM crimp or other fitting system
ACR / refrigerationZoomLock/MAXiPro M12 jaws; RLS path has a manufacturer-document conflictMilwaukee M18 RLS and ZoomLock/MAXiPro jaws where listedExact fitting system, tubing size and current approval

Current M12 2573 vs. older 2473

The 2473 remains important because used tools and older kits are still in the field, and Milwaukee's current matrix explicitly carries it as the discontinued predecessor alongside the 2573. That is useful compatibility context, but it should not be interpreted as a guarantee that every current 2573 feature or kit configuration applies to the older tool.

For a new purchase, the current 2573 product information is the better baseline. For an existing 2473, use the compatibility matrix and the exact attachment part number rather than a retailer listing that simply says “M12 compatible.”

See the full Milwaukee M12 2573 guide →

ONE-KEY, auto-cycle and service interval: useful, but secondary to compatibility

Milwaukee's current M12 and M18 press-tool pages emphasize auto-cycle, a pre-press battery check and ONE-KEY tracking/reporting. The M12 2573 page states a 37,000-cycle interval between service inspections, while the M18 2922 page advertises a 50,000-cycle calibration interval.

Those features matter to contractors managing tools and documentation, but they do not change the first selection question: whether the press tool and attachment are approved for the fitting system and size. A successful tool cycle is not a substitute for correct tube preparation or the fitting manufacturer's installation steps.

Manufacturer sources used for this page

Last technical verification: August 25, 2026.

Milwaukee press tool FAQs

What is the current Milwaukee M12 press tool model?

Milwaukee identifies the current M12 FORCE LOGIC press tool with ONE-KEY as model 2573-20. Its 2026 compatibility matrix lists the older 2473-20 as discontinued.

What is the current Milwaukee M18 FORCE LOGIC press tool model?

Milwaukee identifies the current standard M18 FORCE LOGIC press tool with ONE-KEY as model 2922-20. The 2026 compatibility matrix lists 2673-20 and 2773-20 as discontinued standard-family models.

Are Milwaukee M12 and M18 press jaws interchangeable?

No. Milwaukee states that M12 and M18 direct jaws are not interchangeable. Select the jaw or ring-jaw family intended for the exact press tool and fitting system.

When does the M18 make more sense than the M12?

The M18 becomes the stronger platform when the required fitting system or maximum size exceeds the M12 limits, or when standard-series ring systems are part of the normal workload. The M12 remains attractive for compact access and common service sizes that fall within its verified system range.

Can Milwaukee press tools be used for HVAC refrigeration fittings?

Yes for selected approved ACR systems when the correct system-specific jaws are used. Milwaukee lists RLS and ZoomLock/MAXiPro attachment paths in its current compatibility matrix, but the exact tool, jaw and size must be checked because approvals differ by system.

Does ONE-KEY prove that a press was technically correct?

No. ONE-KEY can support tracking, management and press reporting on supported models, but it does not replace fitting preparation, correct attachment selection or the fitting manufacturer installation instructions.

Current purchase paths

Compare M12 and M18 listings after checking capacity