Dremel
Dremel 4300 Variable Speed Corded Rotary Tool
$134
Released 2017
Best Rotary Tools · head-to-head
Dremel 4300 Variable Speed Corded Rotary Tool vs Bosch Professional GRO 12V-35 Cordless Rotary Tool
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 |  Bosch Professional GRO 12V-35 Cordless Rotary Tool |
|---|---|---|
| US price | $134 | — |
| Brand | Dremel | Bosch |
| Released | 2017 | — |
| Power source | corded | cordless |
| Amps or voltage | 1.8 A | 12 V |
| Speed range (rpm) | 5,000–35,000 RPM | 5,000–35,000 RPM |
| Max (rpm) | 35000 | 35000 |
| Variable speed | Yes | Yes |
| Brushless | No | — |
| Ez change accessories | Yes | No |
| Included accessories count | 40 | — |
| Release year | 2017 | — |
Sources — Dremel 4300 Variable Speed Corded Rotary Tool: prnewswire.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 Dremel 4300 Variable Speed Corded Rotary Tool and Bosch Professional GRO 12V-35 Cordless Rotary Tool?
Where the two actually differ on the specs we track (3 of 8). Matching specs are omitted.
- Power source: Dremel 4300 Variable Speed Corded Rotary Tool corded vs Bosch Professional GRO 12V-35 Cordless Rotary Tool cordless
- Amps or voltage: Dremel 4300 Variable Speed Corded Rotary Tool 1.8 A vs Bosch Professional GRO 12V-35 Cordless Rotary Tool 12 V
- Ez change accessories: Dremel 4300 Variable Speed Corded Rotary Tool true vs Bosch Professional GRO 12V-35 Cordless Rotary Tool false
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.
Bosch Professional GRO 12V-35 Cordless Rotary Tool
No sourced tester review yet.