Half moon obstruction wrenches have a standard wrench head on each end, but the shape resembles a crescent, hence the “half moon” name. The ends can be open or boxed and can be the same size on each end or vary depending on the set you choose. Half moon obstruction wrenches add options for different angles and hand positions that normal wrenches can’t offer when turning a fastener. While there are many different options on the market, we’ve taken some time to review our favorite set with the hope of taking some of the guess work out of your search if you are interested in picking up a set of obstruction wrenches.
The Best Half Moon Obstruction Wrench Set
Each set of wrenches comes in a heavy-duty canvas bag that will keep the wrenches dry and organized when not in use. Each wrench features a different sized 12-point head on each end to cover more fastener sizes with fewer tools (which means they take up less space on your shelf). SAE sizes are 5/16-inch x 3/8-inch, 7/16-inch x 1/2-inch, 9/16-inch x 5/8-inch, 11/16-inch x 3/4-inch, and 13/16-inch x 7/8-inch. Metrics sizes include 8mm x 10mm, 11mm x 13mm, 14mm x 15mm, 17mm x 19mm, 21mm x 22mm. Each set weighs around 2 pounds including the bag and is small enough at 9-inches long by 5-inches wide to easily fit in a cabinet, tool chest, or perhaps under a seat in your car for emergencies.
As far as available purchasing options, Amazon’s competitive pricing makes it the first place we’d suggest looking. Overall, Sunex offers one of the best half moon obstruction wrench sets around. Whether you need SAE standard or metric, or both, we think you’ll be quite pleased with these sets as they will last pretty much forever and expand your capabilities which will hopefully result in fewer frustrating bolts and fewer swear words uttered on your next car project. Happy wrenching!
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