4 Tap Wrenches For Holding Taps. This is a new set of 4 tap wrenches. These are used for holding taps firmly. They have knurled handles that are made of chrome steel. The jaws measures approximately 3/8" (9 mm) open and 1/16" (2 mm) closed. Each measure approximately 7 1/4" (184 mm) long. We work hard to update our descriptions and pictures of our merchandise. As part of a process of ongoing innovation by our suppliers, newer versions of the item shown may be shipped before we are able to complete an update. As a result there may be a slight variation in color and design.