12 Piece Combination Gearwrench Set. Set contains 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18 and 19mm. 12 Piece metric Gear Wrench Set 6° movement on 8 and 9mm, 5° movement on 10 to 18mm Meets or exceeds ANSI and DIN standards 72 Teeth ratcheting box head Fully hardened all metal construction nickel-chrome plated mirror finish