Griot's Garage G9 Random Orbital Polisher

The G9 is a random-orbital (dual-action / DA) polisher, not a rotary. The backing plate orbits around its center axis while also rotating on an offset, producing a random scratch pattern that resists burning through paint. DA polishers are more forgiving for beginners than rotary polishers — an uneven dwell on a rotary can burn paint; the same mistake on a DA polishes out. The G9's 9 mm orbit throw places it in the light-to-moderate correction range.

No UL Listing or ETL Certification has been verified for the G9 (model 10901) in North American safety databases as of May 2026 — UL Product iQ and the Intertek ETL Listed Product database both returned no matches. The manual displays a 'Class II / Construction' symbol, but that is an IEC double-insulation indicator, not a US National Recognized Testing Laboratory (NRTL) listing.

The G9 ships with a 6-inch vented hook-and-loop backing plate (standard for 6.5" pads). An optional 5-inch backing plate is available separately for tighter areas — door handle clusters, mirror caps, complex curves. The spindle uses a standard 5/16"-24 thread, which means most third-party backing plates will fit. Standard hook-and-loop pads from Lake Country, Buff and Shine, Meguiar's, and Griot's all attach without adapters.

The throw size — also called orbit diameter — determines how aggressive the machine is at paint correction. An 8 mm throw is a finishing-only machine; a 9 mm throw (the G9) handles light-to-moderate correction with appropriate pads and compounds; a 15 mm throw and 21 mm throw machines (commonly Rupes and Adam's models) are correction-focused for heavier swirl removal and single-stage paint defects. For typical daily-driver paint with light swirls, the G9 is sufficient. For heavy correction on harder finishes, a higher-throw machine is the better fit.

Griot's Lifetime Guarantee covers repair or replacement of any defective tool, without charge, for the working life of the tool — provided the failure is due to faulty materials or workmanship and the tool was used for its intended purpose. There is also a separate 6-month satisfaction guarantee that allows return for full refund if the buyer is not satisfied for any reason. The detachable cord design means cord damage can be addressed by swapping the cord rather than sending in the tool.

Amazon's listing displays a generic California Proposition 65 flag, but the manufacturer's manual (model 10901 PDF) clarifies that the Prop 65 reference applies to polishes and compounds used with the tool — not to the polisher itself. Specifically, the manual notes that some older paint finishes contain lead and some polishes contain crystalline silica, both of which are Prop 65 substances. Buyers concerned about Prop 65 exposure should review the SDS for the polish or compound being used; the polisher itself is an electric tool with no chemical emission pathway.