Bosch
Bosch CS5 15-Amp 7-1/4 in. Left-Blade Corded Circular Saw
$179
Best Circular Saws · head-to-head
Bosch CS5 15-Amp 7-1/4 in. Left-Blade Corded Circular Saw vs Ridgid R8654B 18V OCTANE Brushless Cordless 7-1/4 in. Circular Saw
A sourced, side-by-side comparison. Ridgid R8654B 18V OCTANE Brushless Cordless 7-1/4 in. Circular Saw is cheaper at $169. Every spec and price links to its source.
Ridgid
Ridgid R8654B 18V OCTANE Brushless Cordless 7-1/4 in. Circular Saw
$169Cheaper
Released 2019
Which is better: the Bosch CS5 15-Amp 7-1/4 in. Left-Blade Corded Circular Saw or Ridgid R8654B 18V OCTANE Brushless Cordless 7-1/4 in. Circular Saw?
On the specs we track, they're closely matched. The Ridgid R8654B 18V OCTANE Brushless Cordless 7-1/4 in. Circular Saw is the cheaper at $169.
See Bosch CS5 15-Amp 7-1/4 in. Left-Blade Corded Circular Saw on Amazon See Ridgid R8654B 18V OCTANE Brushless Cordless 7-1/4 in. Circular Saw on Amazon
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Full spec sheet
✓ marks the stronger figure where "more" — or "less", for price and weight — is unambiguously better.
| Spec | Bosch CS5 15-Amp 7-1/4 in. Left-Blade Corded Circular Saw | Ridgid R8654B 18V OCTANE Brushless Cordless 7-1/4 in. Circular Saw |
|---|---|---|
| US price | $179 | $169 |
| Brand | Bosch | Ridgid |
| Released | — | 2019 |
| Power source | corded | cordless |
| Blade size (in) | 7-1/4 in | 7-1/4 in |
| Voltage or amps | 15 A | 18 V |
| Max (rpm) | 6200 | 5600 |
| Bevel capacity (°) | 56 deg | 56 deg |
| Brushless | No | Yes |
| Weight (lb) | 10 lb | 9.5 lb |
| Release | — | 2019 |
Sources — Bosch CS5 15-Amp 7-1/4 in. Left-Blade Corded Circular Saw: boschtools.com (verified 2026-06-20). Ridgid R8654B 18V OCTANE Brushless Cordless 7-1/4 in. Circular Saw: homedepot.com (verified 2026-06-20).
What's the difference between the Bosch CS5 15-Amp 7-1/4 in. Left-Blade Corded Circular Saw and Ridgid R8654B 18V OCTANE Brushless Cordless 7-1/4 in. Circular Saw?
Where the two actually differ on the specs we track (5 of 7). Matching specs are omitted.
- Power source: Bosch CS5 15-Amp 7-1/4 in. Left-Blade Corded Circular Saw corded vs Ridgid R8654B 18V OCTANE Brushless Cordless 7-1/4 in. Circular Saw cordless
- Voltage or amps: Bosch CS5 15-Amp 7-1/4 in. Left-Blade Corded Circular Saw 15 A vs Ridgid R8654B 18V OCTANE Brushless Cordless 7-1/4 in. Circular Saw 18 V
- Max (rpm): Bosch CS5 15-Amp 7-1/4 in. Left-Blade Corded Circular Saw 6200 vs Ridgid R8654B 18V OCTANE Brushless Cordless 7-1/4 in. Circular Saw 5600
- Brushless: Bosch CS5 15-Amp 7-1/4 in. Left-Blade Corded Circular Saw false vs Ridgid R8654B 18V OCTANE Brushless Cordless 7-1/4 in. Circular Saw true
- Weight (lb): Bosch CS5 15-Amp 7-1/4 in. Left-Blade Corded Circular Saw 10 lb vs Ridgid R8654B 18V OCTANE Brushless Cordless 7-1/4 in. Circular Saw 9.5 lb
What reviewers say
Sourced tester consensus for each — the "what people who used it think" layer, not just specs.
Bosch CS5 15-Amp 7-1/4 in. Left-Blade Corded Circular Saw
Only one whitelisted tester, Pro Tool Reviews, covers the Bosch CS5, and it is a brief 2010 first-look preview rather than a hands-on lab test, so no independently measured numbers exist. It praises the left-blade line of sight and calls the 15-amp saw one of the best values; no critical testing or negatives are available. (1 sourced review.)
Praised: Left-blade orientation gives a clear line of sight for accurate cutting; Regarded as one of the best values among 15-amp circular saws.
Ridgid R8654B 18V OCTANE Brushless Cordless 7-1/4 in. Circular Saw
Only one whitelisted tester, Pro Tool Reviews, published a hands-on head-to-head review of the exact R8654B; no other whitelisted hands-on reviews were found. Their verdict: a solid brushless upgrade over Ridgid's Gen5X with excellent blade sightlines and shoe glide, but middling raw power (lowest of three power tiers in their test), a guard that hangs on thin cuts, and heavy weight. (1 sourced review, 1 lab-tested.)
Praised: Excellent, unobstructed blade sightline aided by LED; Magnesium shoe coating glides smoothly over material; Comfortable, well-offset handle with Hex Grip overmold; included vac/dust port.
Flagged: Lower guard hangs on thin shave, miter and compound cuts; Shoe notches off ~1/8 in at 0° and 45°, plus slight crosscut tracking wander; One of the heaviest cordless sidewinders (9.5 lb bare, 12.0 lb with 9.0Ah pack).