DEWALT DWE6420 and DWE6421 are random orbit sanders from DEWALT. Both these sanders are great and are meant for specific purpose. Let's first go through the specs of both these sanders. Specification SpecificationDEWALTDWE6420DEWALTDWE6421AMPS 3 AMPS3 AMPSDUST COLLECTION YESYESDUST SEALED SWITCH TRUETRUEORBIT DIAMETER 3/32 IN3/32 … [Read more...] about DEWALT DWE6420 vs DWE6421: Which is the Best?