Best Rotary Tools · head-to-head

Dremel 4300 Variable Speed Corded Rotary Tool vs Milwaukee M12 Cordless Lithium-Ion Rotary Tool Kit (2460-21)

A sourced, side-by-side comparison. Dremel 4300 Variable Speed Corded Rotary Tool is cheaper at $134. Every spec and price links to its source.

Full spec sheet

marks the stronger figure where "more" — or "less", for price and weight — is unambiguously better.

Spec Dremel 4300 Variable Speed Corded Rotary Tool Milwaukee M12 Cordless Lithium-Ion Rotary Tool Kit (2460-21)
US price $134
BrandDremelMilwaukee
Released2017
Power source corded cordless
Amps or voltage 1.8 A 12 V / 1.5 Ah
Speed range (rpm) 5,000–35,000 RPM 5,000–32,000 RPM
Max (rpm) 35000 32000
Variable speed Yes Yes
Brushless No No
Ez change accessories Yes No
Included accessories count 40 5
Release year 2017

Sources — Dremel 4300 Variable Speed Corded Rotary Tool: prnewswire.com (verified 2026-06-20). Milwaukee M12 Cordless Lithium-Ion Rotary Tool Kit (2460-21): milwaukeetool.com (verified 2026-06-20).

What's the difference between the Dremel 4300 Variable Speed Corded Rotary Tool and Milwaukee M12 Cordless Lithium-Ion Rotary Tool Kit (2460-21)?

Where the two actually differ on the specs we track (6 of 8). Matching specs are omitted.

  • Power source: Dremel 4300 Variable Speed Corded Rotary Tool corded vs Milwaukee M12 Cordless Lithium-Ion Rotary Tool Kit (2460-21) cordless
  • Amps or voltage: Dremel 4300 Variable Speed Corded Rotary Tool 1.8 A vs Milwaukee M12 Cordless Lithium-Ion Rotary Tool Kit (2460-21) 12 V / 1.5 Ah
  • Speed range (rpm): Dremel 4300 Variable Speed Corded Rotary Tool 5,000–35,000 RPM vs Milwaukee M12 Cordless Lithium-Ion Rotary Tool Kit (2460-21) 5,000–32,000 RPM
  • Max (rpm): Dremel 4300 Variable Speed Corded Rotary Tool 35000 vs Milwaukee M12 Cordless Lithium-Ion Rotary Tool Kit (2460-21) 32000
  • Ez change accessories: Dremel 4300 Variable Speed Corded Rotary Tool true vs Milwaukee M12 Cordless Lithium-Ion Rotary Tool Kit (2460-21) false
  • Included accessories count: Dremel 4300 Variable Speed Corded Rotary Tool 40 vs Milwaukee M12 Cordless Lithium-Ion Rotary Tool Kit (2460-21) 5

What reviewers say

Sourced tester consensus for each — the "what people who used it think" layer, not just specs.

Dremel 4300 Variable Speed Corded Rotary Tool

Only one whitelisted tester, Pro Tool Reviews, covers this exact model, naming the corded Dremel 4300-5/40 its best overall rotary tool for power and flexibility and praising its keyless chuck. The verdict is qualitative with no tester-measured lab figures. The lone knock is bulk. (1 sourced review.)

Praised: Named best overall rotary tool for power and flexibility across a 5,000-35,000 RPM range; Keyless chuck makes swapping bits fast and tool-free; Comprehensive 40-piece accessory kit with cases and attachment collars.

Flagged: Some crafters and DIYers may find the tool slightly bulky.

Milwaukee M12 Cordless Lithium-Ion Rotary Tool Kit (2460-21)

Only one whitelisted tester, Pro Tool Reviews, published a genuine hands-on review of this exact 2460-21 kit, and it is positive but qualitative with no lab benchmarks. They praised power, ease of use, price, and surprising run-time from the single battery, while noting the one-battery kit and material melting at full speed. (1 sourced review, 1 lab-tested.)

Praised: Power, ease of use, and value at a hobby-tool price; More-than-adequate run-time from the single RedLithium battery; Variable speed control (5,000-32,000 RPM) is a real asset for control.

Flagged: Kit ships with only one battery; At full speed it melts/burns some materials; speed must be dialed down.

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