OTC's 5098 is an air hammer attachment designed to break loose cone washers on floating axle dual rear wheel setups. The patented hollow-center tool slides over the stud, making direct contact with the cone washer to vibrate it free. OTC's 5098 eliminates the need to use chisels or other makeshift methods that can cause expensive damage to parts. Patented OTC design offers rugged construction for a long service life and reliable performance on the job. Product dimensions: 7.2 inches long x 1.5 inches wide; weighs 1.5 pounds. Value is at the core of the OTC tool and equipment portfolio. Whether it's a simple repair or the most complex drivability concern, these award-winning tools universally solve problems faster, and at better value, than any other product line available. Whether it's a specialty tool or unique piece of service equipment, OTC provides top solutions to modern automotive service challenges while increasing technicians' productivity and shop profits.