Sizes: 8 x 10 mm - 12 x 13 mm, 16 x 17mm - 18 x 19mm
Product Features:- QuadBox design has 2 fastener sizes in each box end
- Reversing levers on both sides for fast, easy access
- Save Weight: 4 Sizes in one wrench
- Surface Drive on box end provides off-corner loading for better grip and reduced fastener rounding