IJO1787 Features: * For rotating pistons back into the caliper to provide clearance for new pads * Pneumatic cylinder pushes adapter against brake caliper piston * Pivoting handle provides leverage to rotate stubborn pistons back into the caliper * Turn valve counterclockwise, then by hand, slide shaft with proper adapter to engage piston * Turn valve clockwise to turn on air pressure * Rotate piston back into brake cylinder clockwise or counter clockwise * Turn valve counterclockwise to release air pressure to remove tool * Tool may be used on or off the car * Makes this tough job quick and easy * Pins on 2B Adapter are now smaller in diameter to fit newer Mazda 3 and mini Cooper applications * Set comes in blow-molded case for storage Includes: * Includes 5 adapters for use in both 2- and 4-wheel disc brake assemblies of most domestic and import cars Dimensions: * Weight: 6 lbs (3 oz)