Black+Decker
Black+Decker RTX-B 3-Speed RTX Rotary Tool
$42.71
Best Rotary Tools · head-to-head
Black+Decker RTX-B 3-Speed RTX Rotary Tool vs Genesis GRT2103-40 Variable Speed Rotary Tool with 40 Accessories
A sourced, side-by-side comparison. Genesis GRT2103-40 Variable Speed Rotary Tool with 40 Accessories is cheaper at $19.99. Every spec and price links to its source.
Genesis
Genesis GRT2103-40 Variable Speed Rotary Tool with 40 Accessories
$19.99Cheaper
Which is better: the Black+Decker RTX-B 3-Speed RTX Rotary Tool or Genesis GRT2103-40 Variable Speed Rotary Tool with 40 Accessories?
On the specs we track, they're closely matched. The Genesis GRT2103-40 Variable Speed Rotary Tool with 40 Accessories is the cheaper at $19.99.
See Black+Decker RTX-B 3-Speed RTX Rotary Tool on Amazon See Genesis GRT2103-40 Variable Speed Rotary Tool with 40 Accessories on Amazon
As an Amazon Associate we earn from qualifying purchases. Prices verified at capture; live price may differ.
Full spec sheet
✓ marks the stronger figure where "more" — or "less", for price and weight — is unambiguously better.
| Spec | Black+Decker RTX-B 3-Speed RTX Rotary Tool | Genesis GRT2103-40 Variable Speed Rotary Tool with 40 Accessories |
|---|---|---|
| US price | $42.71 | $19.99 |
| Brand | Black+Decker | Genesis |
| Released | — | — |
| Power source | corded | corded |
| Amps or voltage | 2 A / 120 V | 1 A / 120 V |
| Speed range (rpm) | 12,000 / 24,000 / 30,000 RPM (3 fixed speeds) | 8,000–30,000 RPM |
| Max (rpm) | 30000 | 30000 |
| Variable speed | No | Yes |
| Brushless | No | No |
| Ez change accessories | No | No |
| Included accessories count | 5 | 40 |
| Release year | — | — |
Sources — Black+Decker RTX-B 3-Speed RTX Rotary Tool: toolboxsupply.com (verified 2026-06-20). Genesis GRT2103-40 Variable Speed Rotary Tool with 40 Accessories: homedepot.com (verified 2026-06-20).
What's the difference between the Black+Decker RTX-B 3-Speed RTX Rotary Tool and Genesis GRT2103-40 Variable Speed Rotary Tool with 40 Accessories?
Where the two actually differ on the specs we track (4 of 8). Matching specs are omitted.
- Amps or voltage: Black+Decker RTX-B 3-Speed RTX Rotary Tool 2 A / 120 V vs Genesis GRT2103-40 Variable Speed Rotary Tool with 40 Accessories 1 A / 120 V
- Speed range (rpm): Black+Decker RTX-B 3-Speed RTX Rotary Tool 12,000 / 24,000 / 30,000 RPM (3 fixed speeds) vs Genesis GRT2103-40 Variable Speed Rotary Tool with 40 Accessories 8,000–30,000 RPM
- Variable speed: Black+Decker RTX-B 3-Speed RTX Rotary Tool false vs Genesis GRT2103-40 Variable Speed Rotary Tool with 40 Accessories true
- Included accessories count: Black+Decker RTX-B 3-Speed RTX Rotary Tool 5 vs Genesis GRT2103-40 Variable Speed Rotary Tool with 40 Accessories 40