These tap socket sets are for tapping holes in hard-to-reach places and where you want to take advantage of the conveniences of using your 3/8inch socket set's ratchet handle. The tap extraction socket set themselves are compact and can find a place in your specialty tool drawer. There are two of them, both 3/8 drive, compatible with a wide range of taps, covering sizes from #6 to 1/2inch (3mm to 12mm). Which accommodates a wide variety of tap and extractor sizes. Ever tried to use a tap handle in tight quarters, under the hood of a car for example? It can be a real pain in the patootie. Just makes no sense, which leaves one struggling with small wrenches, pliers, or a tap with no handle, etc. What it also does is impossible for the average guy or gal to use a bulky tap handle. As you can imagine, this opens up a whole way of thread, tapping, and even extracting. Battery and air-powered tools, universal joints, extensions, regular ratchets, and so forth now mate to your family of taps and extractors. Colour: Black Material: steel Package Contents: 2 * tap extraction socket