CRAFTSMAN CMMT87010 7-Piece SAE Flex Reversible 72-Tooth Ratchet Wrench Set

The CMMT87010 covers SAE only — 5/16-in, 3/8-in, 7/16-in, 1/2-in, 9/16-in, 5/8-in, and 3/4-in across 7 ratcheting combination wrenches. All six critical SAE automotive sizes are present; the set does not extend to 1/4-in at the small end or above 3/4-in for larger hardware. The steel is listed as Alloy Steel in the Amazon specification without further alloy designation; Full Polish Chrome Finish is confirmed from the product listing. Box ends are 12-point ratcheting with a 72-tooth mechanism (5° engagement per tooth) and a 180° flex head on a pin joint — confirming the head pivots to approach fasteners at an angle. No jaw-spread, fastener-rounding, or chrome failure complaints appear in the 229-review sample (4.8★; 87% five-star), and the set holds Amazon's Choice status in Wrench Sets. No storage pouch or case is included.

The right pick for a home mechanic who services primarily domestic vehicles (US-built trucks, older American cars) and wants a compact SAE ratcheting combination wrench set for bolt-on maintenance work in tight spaces — the flex head and 72-tooth mechanism provide real access advantages over standard fixed-head wrenches. Skip it for any vehicle with metric fasteners (virtually all modern imports and most new domestic models); the set has no metric coverage. Also skip it if your work requires sizes outside 5/16–3/4-in, or if you need a 6-point box end for recovering corroded or already-rounded hex heads — the 12-point geometry, while standard, applies torque at the fastener corners rather than the flat faces and elevates rounding risk on damaged fasteners.

No chemical exposure pathway — the CMMT87010 is an Alloy Steel hand tool with no SDS. The steel body is recyclable through standard ferrous scrap streams. No storage pouch is included, removing the typical nylon-pouch end-of-life concern that affects most wrench set environmental scores. CRAFTSMAN combination wrenches are designed for decades of service; the Lifetime Limited Warranty, honored through Lowe's and Ace Hardware, supports the long-haul tool-lifecycle story. Eye and hand protection during mechanical work reflects the task environment, not any chemistry in the tool itself.