This ergonomic ratchet handle works with any standard 1/2" square drive socket (sold separately). The orange-and-black plastic handle offers great comfort. The unique reversing mechanism snaps positively from side to side. No more mistakenly reversing the ratchet by bumping a little lever! Even if you hold the head of this ratchet in the palm of your hand, you will not accidentally switch it. Extra-fine 72-tooth ratchet requires just 5 degrees of rotation.