Deep Well Design : 2.6 inch deepth to work well in tight spaces. Fits where others won't and can't.
Greater Convience: 3/8 inch square drive and hex adapter for hand tools, air, or power tools. The knockout pin for easier removing the stubborn deep well bolts, nuts & screws.
Superior Quality : Made of high-hardness chrome-molybdenum steel for improved durability for a long time to go.
Perfect Gripping Power : The reverse helical groove design rotates during use, making it easier to remove damaged bolts and nuts.
Bolt Nut Extractor Set : Including a carrying case. And each nut in the box is engraved with a laser-size label, so that you can easily identify and choose the most suitable size.