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CRAFTSMAN CMCF935B vs Milwaukee 2457-20: Which Fits Your Tools?

Choose the CMCF935B for its included interchangeable drive sizes. Choose the 2457-20 when 3/8-inch drive meets your needs and you already have M12 power; otherwise compare the full battery-and-charger purchase before deciding.

Published by Pickoryx · Published 2026-10-08

Source checked 2026-10-08 07:14 UTC

Products compared

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The buying question

Do you need Craftsman’s included interchangeable drives, or does Milwaukee’s 3/8-inch M12 tool fit what you already own?

More supplied drive choices versus staying with the battery system that already supports your work.

Quick verdict

When to skip: You need a ready-to-run package with a battery and charger included.
When the recommendation changes
  • You would need to buy a battery and charger for the preferred tool.
  • Your required socket drive differs from the one you normally use.

The differences that matter

Supplied Socket Drive Interfaces

CRAFTSMAN CMCF935B V20 Multi-Size Ratchet

Includes a reversible 1/4-inch / 3/8-inch anvil and a 1/2-inch anvil with 1/4-inch hex.[1]

Milwaukee 2457-20 M12 3/8-inch Ratchet

Supplied as a 3/8-inch-drive ratchet.[3, 4]

What this changes: Choose Craftsman when you need the supplied drive-size choices. If your work uses 3/8-inch sockets, that extra range alone need not justify changing battery systems.[1, 3, 4]

The better fit depends on your priorities

Existing Battery And Charger Fit

CRAFTSMAN CMCF935B V20 Multi-Size Ratchet

V20 tool-only package: battery and charger are separate. The manual lists compatible packs and chargers, including CMCB202 and CMCB104 respectively.[1, 2]

Milwaukee 2457-20 M12 3/8-inch Ratchet

M12 tool-only package: no battery or charger in its listed box contents. The manual specifies M12 batteries and chargers.[3, 4]

What this changes: Check the labels on your existing battery and charger before comparing complete purchase costs. An already-owned compatible setup can make either tool the more practical addition; brand or voltage alone is not enough.[1, 2, 3, 4]

The better fit depends on your priorities

Best for your routine

Mixed socket-drive collection

Best fit: CRAFTSMAN CMCF935B V20 Multi-Size Ratchet

Based on listed features, not comparative testing.

The supplied anvils cover the listed drive sizes, provided your accessories meet the manual’s requirements. You still need compatible V20 power.

View CRAFTSMAN CMCF935B V20 Multi-Size Ratchet on AmazonPaid link

M12 owner doing 3/8-inch work

Best fit: Milwaukee 2457-20 M12 3/8-inch Ratchet

Based on listed features, not comparative testing.

The documented M12 supply and 3/8-inch drive fit this setup without choosing a new battery family. You give up the Craftsman package’s extra supplied drive options.

View Milwaukee 2457-20 M12 3/8-inch Ratchet on AmazonPaid link

Value and trade-offs

One or both observed offers have eligibility conditions, so no unrestricted price difference is shown.

Compare the tool plus any missing compatible battery, charger and required accessories. Pay more for drive options you will use or a setup that avoids another battery system.

There is insufficient verified price history for a purchase-timing recommendation.

Limitations

  • Pickoryx has not tested either tool. This comparison does not establish a speed, torque, access, runtime or durability winner.
  • CRAFTSMAN warns that the 1/2-inch anvil with 1/4-inch hex contains magnets and should not be used around pacemakers. No comparative safety conclusion is drawn.
  • The CRAFTSMAN product page and manual give conflicting warranty information; warranty is not used to favor either model.

Questions shoppers ask

Does 1/4-inch socket drive mean the same thing as 1/4-inch hex?

No. Craftsman lists a reversible 1/4-inch / 3/8-inch anvil separately from its 1/2-inch anvil with 1/4-inch hex. Match the accessory interface, not just the fraction on the label.

What should I check before using sockets I already own?

Match the drive size and follow the tool’s accessory requirements. Milwaukee specifies impact-tool accessories and appropriate square-drive sockets; Craftsman calls for recommended accessories and battery removal for anvil changes.

Methodology and sources

Compared supplied drive interfaces and documented battery-and-charger requirements for the two tool-only models.

AI assisted source comparison and drafting.

View 4 sources
  1. 1.CRAFTSMAN CMCF935B V20 Multi-Size Ratchet (Tool Only)CRAFTSMAN · Official specifications · Source checked 2026-10-08 07:13 UTC
    Evidence used on this page
    • Overview and Includes, lines 33–62: Exact CMCF935B; battery and charger separate; included reversible 3/8-inch and 1/4-inch anvil plus 1/2-inch anvil with 1/4-inch hex.
  2. 2.CRAFTSMAN CMCF935/CMCF936 instruction manual, March 2026CRAFTSMAN · Official specifications · Source checked 2026-10-08 07:14 UTC
    Evidence used on this page
    • PDF pages 8 and 24; Removing and Installing Anvil; Compatible battery packs and chargers: CMCF935 applicable anvil change procedure and magnetic-anvil warning; compatible battery and charger list. CMCF936 extended-neck features excluded.
  3. 3.Milwaukee 2457-20 M12 3/8-inch Ratchet (Tool Only)Milwaukee Tool · Official specifications · Source checked 2026-10-08 07:13 UTC
    Evidence used on this page
    • In The Box and Product Overview, lines 879–906: Exact tool-only 2457-20 package lists one 3/8-inch ratchet; M12 REDLITHIUM battery sold separately.
  4. 4.Milwaukee M12 cordless ratchets 2456-20 / 2457-20 operator manualMilwaukee Tool · Official specifications · Source checked 2026-10-08 07:14 UTC
    Evidence used on this page
    • PDF page 3, Specifications and Attaching and Removing Accessories: 2457-20 has 3/8-inch drive; M12 battery and charger types. Only recommended impact-tool accessories and appropriate square-drive sockets.

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