PISTON RING COMPRESSOR WITH RATCHET KEY, 1PC HEIGHT 3" (53-125MM); 1PC HEIGHT 4" (60-175MM); 1PC HEIGHT 5" (60-175MM); PISTON RING TOOL CAPACITY 50-100MM; PISTON RING GROOVE CLEANING FITS: 51-127MM; CLEANING BLADE 1 SIZE 1/16" TO 3/16", CLEANING BLADE 2 SIZE 2,0MM TO 4,5MM, CLEANING BLADE 3 SIZE 1,2MM TO 5,5MM; OFFSET DRIVE: PHILIPS AND SLOTTED