This latest addition to the GearWrench brand of high quality, innovative ratcheting wrenches is a double box design including two of the most popular box wrench styles on each wrench. One end features the even stronger XL GearWrench ratcheting box and the other a zero degree offset solid box for accessing recessed and counter sunk fasteners. For even greater access these two great styles are incorporated into a wrench with a beam that is up to 40% longer for unsurpassed leverage. Sizes include: 8mm, 9mm, 10mm, 11mm, 12mm, 13mm, 14mm, 15mm, 16mm, 17mm, 18mm, 19mm, 20mm, 21mm, 22mm, 24mm and 25mm.