Independent testing

How much independent testing exists for each circular saw

Of the 16 circular saws we track, 6 have been physically measured by at least one independent lab. Below is every one, ordered by how much independent hands-on evidence stands behind it — densest first.

A coverage record, not a ranking of which is best.

Product	Independent labs	Metrics measured	Outlets on record
Ryobi PSBCS01B ONE+ HP 18V Brushless Cordless Compact 6-1/2 in. Circular Saw	1	4	1
Makita XSR01Z 18V X2 LXT (36V) Brushless Cordless Rear Handle 7-1/4 in. Circular Saw	1	3	1
Ridgid R8654B 18V OCTANE Brushless Cordless 7-1/4 in. Circular Saw	1	3	1
DeWalt DCS577B FlexVolt 60V MAX 7-1/4 in. Cordless Worm Drive Style Circular Saw	1	2	1
Makita XSH06Z 18V X2 LXT (36V) Brushless Cordless 7-1/4 in. Circular Saw	1	1	1
Milwaukee M18 FUEL 2732-20 7-1/4 in. Brushless Cordless Circular Saw	1	1	1
Bosch CS5 15-Amp 7-1/4 in. Left-Blade Corded Circular Saw	0	0	1
DeWalt DCS570B 20V MAX XR Brushless 7-1/4 in. Circular Saw	0	0	1
DeWalt DWE575SB 7-1/4 in. Lightweight Corded Circular Saw with Electric Brake	0	0	1
Festool TS 55 FEQ-F-Plus 6-1/4 in. Plunge-Cut Track Saw	0	0	1
Makita 5007MG 7-1/4 in. Magnesium Corded Circular Saw	0	0	1
Makita SP6000J1 6-1/2 in. Plunge Circular Saw Kit with 55 in. Guide Rail	0	0	1
Metabo HPT C7SB3 15-Amp 7-1/4 in. Corded Circular Saw	0	0	1
Ryobi P508 ONE+ 18V Brushless 7-1/4 in. Cordless Circular Saw	0	0	1
Skil 5280-01 15-Amp 7-1/4 in. Corded Circular Saw with Laser	0	0	1
Skilsaw SPT77WML-01 15-Amp 7-1/4 in. Lightweight Magnesium Worm Drive Circular Saw	0	0	1

Each figure is a count of what independent testers actually did — how we count. A low count means little independent evidence has been gathered yet, never that a product is worse. See also the Circular Saws buying guide and the reviewers we cite.