【Package Include】SAE : 1/4″, 9/32″, 5/16″, 3/8″, 7/16″, 1/2″, 9/16″, 5/8″, 11/16″, 3/4″. Metric : 6mm, 7mm, 8mm, 10mm, 12mm, 14mm, 15mm, 17mm, 18mm, 19mm.【Material】The impact hex bit set are made of chrome molybdenum steel with black phosphate finish, strong and durable; not easy to rust or corrode.【Fitment】Impact hex driver set provides strong impact strength and flexibility. For removing and servicing brake calipers and loosening the hex bolts in the engine compartment.【Size Clearly】Permanently laser etched and easy to read, even in low light.【Easy to carry】The drive socket set can easy to transport,safe storage and quick organization.