▶ 【PRECISION DESIGN】-The reinforced open end holds on tight to fasteners for reduced bolt rounding.72-tooth ratchet gears need only a 5° working swing arc suitable for any narrow space. ▶ 【NO SKIPPED SIZES】- Contain a full range of wrenches from 1/4 to 1‘’ with no skipped sizes.You can choose any size depending on your needs.