DEWALT DWMT45425 142-Piece Mechanics Tool Set

Both ratchets use a 72-tooth mechanism with a 5-degree arc swing per click, confirmed on DEWALT's manufacturer product page and independently corroborated in a hands-on test. That fine tooth count lets the ratchet advance a fastener in tight engine-bay spaces where a coarser ratchet has to be pulled back for a full swing before it clicks forward again.

The set covers 1/4-in and 3/8-in drive with 28 and 29 SAE and metric sockets, plus a 6-inch extension, a universal joint, and a drive adaptor for each size, so both drives handle standard fastener work without buying separate accessories. There is no 1/2-in drive, so heavier suspension or wheel-fastener jobs need a separate breaker bar or a larger ratchet.

The ratchets, sockets, and wrenches are chrome vanadium steel, confirmed directly on the Amazon product specification table rather than inferred from brand marketing alone. An independent hands-on test described the sockets and wrench ends as precision-cut with a sturdier feel than typical sets, and found no rounding, cracking, or finish failures during testing. DEWALT backs the set with a Full Lifetime Warranty.

Yes. The 142-piece count includes one spark plug socket and one spinner handle alongside the ratchets, sockets, combination wrenches, extensions, universal joints, drive adaptors, and 22 bits with hex keys and nut driver bits, all organized in a blow-molded case with a removable, nested accessory sub-case for the smaller parts.

No. This specific listing does not carry a posted Prop 65 warning. Some other DEWALT mechanics tool sets in the same family do carry one tied to the general chromium content of chrome-plated steel tools, but the warning is listing-specific rather than automatic across every configuration, and no warning is posted for this ASIN.