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Milwaukee 2460-20 vs Dremel 8240-5: What Comes in the Box and How Do Accessories Change?

Choose the Milwaukee 2460-20 if your M12 battery setup is already covered and you want its listed cutting wheels, mandrel, and wrench. Choose the Dremel 8240-5 if you want the documented kit contents—2.0Ah battery, charger, five accessories, and fabric bag—or its integrated nose-cap wrench. The sources support these setup and workflow differences, not a faster or stronger tool.

Published by Pickoryx · Published 2026-10-17

Source checked 2026-10-17 19:09 UTC

Products compared

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The buying question

Do you want the Milwaukee 2460-20 with a separately purchased M12 battery, or the Dremel 8240-5 kit with a battery and charger included, and which collet-change setup fits your routine?

Milwaukee's 2460-20 comes with five cutting wheels, a mandrel, and a wrench while its M12 battery is sold separately; Dremel's 8240-5 fact sheet lists a 2.0Ah battery, charger, five accessories, and fabric carry bag. Their accessory-change instructions also differ: the Milwaukee manual specifies an external collet wrench, while Dremel's 8240 has an integrated wrench in its nose cap.

Quick verdict

Choose Dremel 8240-5 12V Cordless Rotary Tool Kit if

  • You want the 8240-5 fact sheet's listed battery, charger, five accessories, and fabric carry bag in the kit.
  • You prefer an integrated nose-cap wrench for collet changes instead of relying on a separate collet wrench.
When the recommendation changes
  • If the selected 2460-20 offer includes a separate battery bundle, verify that bundle directly; Milwaukee's manufacturer page describes the 2460-20 tool and says the M12 battery is sold separately.
  • If the task depends on which tool removes material faster, published no-load speed figures do not answer that question; Milwaukee's product page and operator manual also give different top RPM figures for the same catalog number.

The differences that matter

Battery Platform And Kit Contents

Milwaukee 2460-20 M12 Cordless Rotary Tool

The 2460-20 uses Milwaukee's M12 battery platform; Milwaukee says the battery is sold separately. Its page lists five cutting wheels, a mandrel, and a wrench.[1]

Dremel 8240-5 12V Cordless Rotary Tool Kit

The exact 8240-5 fact sheet lists a 2.0Ah battery, 65-minute charger, five named accessories, wrench, instruction manual, and fabric carry bag.[3]

What this changes: This is a box-readiness choice: choose the Milwaukee if the M12 battery and charger you plan to use are already covered; choose the Dremel kit if its listed battery and charger are useful inclusions. The accessory lists are different, so compare them against the work you plan to do rather than comparing only their item counts.[1, 3]

The better fit depends on your priorities

Accessory Change And Speed Controls

Milwaukee 2460-20 M12 Cordless Rotary Tool

The Milwaukee manual's 2460-20 procedure removes the battery, engages the spindle lock, and tightens the collet nut with a 3/8-inch collet wrench; the product page lists a variable-speed dial.[2, 1]

Dremel 8240-5 12V Cordless Rotary Tool Kit

The Dremel 8240 manual describes an integrated wrench in the nose cap that loosens or tightens the collet nut without the standard collet wrench; it also lists a variable-speed dial.[4]

What this changes: If you change bits often, the Dremel's nose cap keeps a wrench feature on the tool; the Milwaukee procedure uses its included separate wrench. This is a documented handling difference, not a measured change-time advantage.[2, 1, 4]

The better fit depends on your priorities

Best for your routine

A cordless rotary tool when you already have the M12 battery you plan to use and want the 2460-20's listed cutoff accessories

Best fit: Milwaukee 2460-20 M12 Cordless Rotary Tool

Based on listed features, not comparative testing.

Milwaukee lists the M12 battery as sold separately and lists five cutting wheels, a mandrel, and a wrench with the 2460-20.

A cordless rotary-tool kit with a battery, charger, five listed accessories, and fabric carry bag

Best fit: Dremel 8240-5 12V Cordless Rotary Tool Kit

Based on listed features, not comparative testing.

Dremel's fact sheet specifies those contents for catalog number 8240-5.

Value and trade-offs

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

Consider whether a ready-to-use battery-and-charger kit or an M12 tool whose battery is separate better fits the equipment and accessories you already own.

There is not enough price history to recommend buying now or waiting.

Limitations

  • The Milwaukee product page lists a 5,000–32,000 RPM range, while its operator manual for catalog number 2460-20 lists 5,000–37,000 no-load RPM. Dremel's 8240-5 fact sheet lists 5,000–35,000 RPM. These manufacturer figures conflict on Milwaukee and do not establish which tool cuts or grinds faster.
  • The sources do not provide a controlled head-to-head test of material removal, runtime, tool life, noise, or finish quality.
  • Confirm the current seller's package contents match the exact 2460-20 or 8240-5 offer; the cited kit statement describes Dremel catalog number 8240-5.

Questions shoppers ask

Does the Milwaukee 2460-20 come with a battery and charger?

Milwaukee says the M12 battery is sold separately. Its product page lists five cutting wheels, a mandrel, and a wrench with the rotary tool. Check the exact current offer if you need a battery or charger included.

Do the RPM figures show which tool is faster?

No. Milwaukee's product page lists 5,000–32,000 RPM, while its operator manual for the same catalog number lists 5,000–37,000 no-load RPM; Dremel lists 5,000–35,000 RPM for the 8240. Those published ranges are not a matched cutting or grinding test.

Methodology and sources

Compared documented battery and box contents, the manufacturer's accessory-change instructions and the published variable-speed controls. Milwaukee's product page and its exact-catalog-number manual disagree on no-load RPM; those figures are reported as a conflict and are not used to infer real-world performance.

AI assistance organized the published manufacturer information into conditional buying guidance. Pickoryx did not conduct hands-on testing.

View 4 sources
  1. 1.M12 Cordless Lithium-Ion Rotary ToolMilwaukee Tool · Official specifications · Source checked 2026-10-17 19:09 UTC
    Evidence used on this page
    • Product Overview and product features; lines 879–900 in the opened U.S. page: Identifies catalog number 2460-20, M12 battery sold separately, included 1/8-inch collet, additional collet sizes sold separately, variable-speed dial, five cutting wheels, mandrel and wrench; publishes a 5,000–32,000 RPM range.
  2. 2.M12 Cordless Rotary Tool Operator's Manual, Cat. No. 2460-20Milwaukee Tool · Official specifications · Source checked 2026-10-17 19:09 UTC
    Evidence used on this page
    • Cover and specification panel, printed page 3; Assembly / Installing Accessories, printed page 4: Names Cat. No. 2460-20 and M12 battery type. The manual's accessory-change procedure removes the battery and uses the spindle lock and 3/8-inch collet wrench. Its 5,000–37,000 no-load RPM specification conflicts with the current Milwaukee product page.
  3. 3.Dremel 8240 — High-Speed 12-Volt Cordless Rotary Tool Fact SheetDremel · Official specifications · Source checked 2026-10-17 19:09 UTC
    Evidence used on this page
    • Kit Contents, catalog number 8240-5, page 2; Tool Specifications, page 2: Names catalog number 8240-5 and lists the tool, 2.0Ah battery, 65-minute charger, five specified accessories, wrench, instruction manual and fabric carry bag. The specification section lists 5,000–35,000 RPM.
  4. 4.Dremel 8240 Operating / Safety InstructionsDremel · Official specifications · Source checked 2026-10-17 19:09 UTC
    Evidence used on this page
    • Specifications and Functional Description, printed page 11; Collet Nut / EZ Twist Integrated Wrench Nose Cap, printed page 12: Identifies model 8240, 10.8V/12V MAX, variable speed dial and collet sizes; explains that its nose cap includes a wrench to loosen/tighten the collet nut without the standard collet wrench.