Best Car Polishers · head-to-head

Griot's Garage G9 Random Orbital Polisher vs SPTA DA501-US 5in/6in Dual Action Polisher Kit

A sourced, side-by-side comparison. Griot's Garage G9 Random Orbital Polisher is cheaper at $179.99. 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 Griot's Garage G9 Random Orbital Polisher SPTA DA501-US 5in/6in Dual Action Polisher Kit
US price $179.99 Griot's Garage direct list price
BrandGriot's GarageSPTA
Released
Orbit throw (mm) 9 9
Motor power 1000 W, 8.5 A 780 W
Speed range opm 2,000-6,400 2,000-5,500
Backing plate size (in) 6 in (converts to 5 in) 5 in / 6 in
Variable speed Yes Yes
Action type gear-driven dual-action (forced rotation) gear-driven dual-action (forced rotation, budget import)
Cord length (ft) 10
Weight (lb) 4.4

Sources — Griot's Garage G9 Random Orbital Polisher: griotsgarage.com (verified 2026-08-01). SPTA DA501-US 5in/6in Dual Action Polisher Kit: amazon.com (verified 2026-08-01).

What's the difference between the Griot's Garage G9 Random Orbital Polisher and SPTA DA501-US 5in/6in Dual Action Polisher Kit?

Where the two actually differ on the specs we track (4 of 8). Matching specs are omitted.

  • Motor power: Griot's Garage G9 Random Orbital Polisher 1000 W, 8.5 A vs SPTA DA501-US 5in/6in Dual Action Polisher Kit 780 W
  • Speed range opm: Griot's Garage G9 Random Orbital Polisher 2,000-6,400 vs SPTA DA501-US 5in/6in Dual Action Polisher Kit 2,000-5,500
  • Backing plate size (in): Griot's Garage G9 Random Orbital Polisher 6 in (converts to 5 in) vs SPTA DA501-US 5in/6in Dual Action Polisher Kit 5 in / 6 in
  • Action type: Griot's Garage G9 Random Orbital Polisher gear-driven dual-action (forced rotation) vs SPTA DA501-US 5in/6in Dual Action Polisher Kit gear-driven dual-action (forced rotation, budget import)

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