# Milwaukee M12 Cordless Lithium-Ion Rotary Tool Kit (2460-21) vs Black+Decker RTX-B 3-Speed RTX Rotary Tool: specs and price compared

A sourced, side-by-side comparison of the Milwaukee M12 Cordless Lithium-Ion Rotary Tool Kit (2460-21) (Milwaukee) and Black+Decker RTX-B 3-Speed RTX Rotary Tool (Black+Decker) among rotary tools.

## Side by side

| Spec | Milwaukee M12 Cordless Lithium-Ion Rotary Tool Kit (2460-21) | Black+Decker RTX-B 3-Speed RTX Rotary Tool |
| --- | --- | --- |
| US price | not published | $42.71 |
| Brand | Milwaukee | Black+Decker |
| Power source | cordless | corded |
| Amps or voltage | 12 V / 1.5 Ah | 2 A / 120 V |
| Speed range (rpm) | 5,000–32,000 RPM | 12,000 / 24,000 / 30,000 RPM (3 fixed speeds) |
| Max (rpm) | 32000 | 30000 |
| Variable speed | Yes | No |
| Brushless | No | No |
| Ez change accessories | No | No |
| Included accessories count | 5 | 5 |

## Key differences

- Power source: Milwaukee M12 Cordless Lithium-Ion Rotary Tool Kit (2460-21) cordless vs Black+Decker RTX-B 3-Speed RTX Rotary Tool corded
- Amps or voltage: Milwaukee M12 Cordless Lithium-Ion Rotary Tool Kit (2460-21) 12 V / 1.5 Ah vs Black+Decker RTX-B 3-Speed RTX Rotary Tool 2 A / 120 V
- Speed range (rpm): Milwaukee M12 Cordless Lithium-Ion Rotary Tool Kit (2460-21) 5,000–32,000 RPM vs Black+Decker RTX-B 3-Speed RTX Rotary Tool 12,000 / 24,000 / 30,000 RPM (3 fixed speeds)
- Max (rpm): Milwaukee M12 Cordless Lithium-Ion Rotary Tool Kit (2460-21) 32000 vs Black+Decker RTX-B 3-Speed RTX Rotary Tool 30000
- Variable speed: Milwaukee M12 Cordless Lithium-Ion Rotary Tool Kit (2460-21) Yes vs Black+Decker RTX-B 3-Speed RTX Rotary Tool No

## What reviewers say

**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.)

## Sources

- Milwaukee M12 Cordless Lithium-Ion Rotary Tool Kit (2460-21): https://www.milwaukeetool.com/products/details/m12-rotary-tool-kit/2460-21 (milwaukeetool.com, verified 2026-06-20)
- Black+Decker RTX-B 3-Speed RTX Rotary Tool: https://www.toolboxsupply.com/products/black-decker-rtx-b-3-speed-rtx-rotary-tool-kit (toolboxsupply.com, verified 2026-06-20)

Canonical: https://frontdeskreview.com/gear/rotary-tools/milwaukee-m12-2460-21-vs-black-decker-rtx-b/
Cite: Per The Front Desk Review, Milwaukee M12 Cordless Lithium-Ion Rotary Tool Kit (2460-21) (not published) vs Black+Decker RTX-B 3-Speed RTX Rotary Tool ($42.71) — sourced spec-by-spec comparison at https://frontdeskreview.com/gear/rotary-tools/milwaukee-m12-2460-21-vs-black-decker-rtx-b/
License: CC BY 4.0.