Genesis
Genesis GRT2103-40 Variable Speed Rotary Tool with 40 Accessories
$19.99
Best Rotary Tools · head-to-head
Genesis GRT2103-40 Variable Speed Rotary Tool with 40 Accessories vs Bosch Professional GRO 12V-35 Cordless Rotary Tool
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.
Full spec sheet
✓ marks the stronger figure where "more" — or "less", for price and weight — is unambiguously better.
| Spec | Genesis GRT2103-40 Variable Speed Rotary Tool with 40 Accessories |  Bosch Professional GRO 12V-35 Cordless Rotary Tool |
|---|---|---|
| US price | $19.99 | — |
| Brand | Genesis | Bosch |
| Released | — | — |
| Power source | corded | cordless |
| Amps or voltage | 1 A / 120 V | 12 V |
| Speed range (rpm) | 8,000–30,000 RPM | 5,000–35,000 RPM |
| Max (rpm) | 30000 | 35000 |
| Variable speed | Yes | Yes |
| Brushless | No | — |
| Ez change accessories | No | No |
| Included accessories count | 40 | — |
| Release year | — | — |
Sources — Genesis GRT2103-40 Variable Speed Rotary Tool with 40 Accessories: homedepot.com (verified 2026-06-20). Bosch Professional GRO 12V-35 Cordless Rotary Tool: bosch-professional.com (verified 2026-07-10).
What's the difference between the Genesis GRT2103-40 Variable Speed Rotary Tool with 40 Accessories and Bosch Professional GRO 12V-35 Cordless Rotary Tool?
Where the two actually differ on the specs we track (4 of 8). Matching specs are omitted.
- Power source: Genesis GRT2103-40 Variable Speed Rotary Tool with 40 Accessories corded vs Bosch Professional GRO 12V-35 Cordless Rotary Tool cordless
- Amps or voltage: Genesis GRT2103-40 Variable Speed Rotary Tool with 40 Accessories 1 A / 120 V vs Bosch Professional GRO 12V-35 Cordless Rotary Tool 12 V
- Speed range (rpm): Genesis GRT2103-40 Variable Speed Rotary Tool with 40 Accessories 8,000–30,000 RPM vs Bosch Professional GRO 12V-35 Cordless Rotary Tool 5,000–35,000 RPM
- Max (rpm): Genesis GRT2103-40 Variable Speed Rotary Tool with 40 Accessories 30000 vs Bosch Professional GRO 12V-35 Cordless Rotary Tool 35000