Features and Benefits * Unique X-Beam design allows you to apply force to the flat of the wrench which reduces hand fatigue and increases surface contact by over 500%. * Up to 25% longer beam to access those hard to reach fasteners * Surface Drive Plus provides stronger grip on fasteners and delivers up to 25% more torque * Surface Drive on ratcheting box end improves box end strength and reduces fastener rounding * First tool recognized by the Arthritis Institute to significantly reduce the risk of carpal tunnel This 12 piece Metric X-Beam Ratcheting Combination Wrench Set. Includes: 8mm, 9mm, 10mm, 11mm, 12mm, 13mm, 14mm, 15mm, 16mm, 17mm, 18mm and 19mm. XL X-Beam Ratcheting Combination Wrench - 3/4-inch