1Bottle Capper: This electric cap screw can be easily used to tighten, loosen or rotate various nuts, saving time and labor, very convenient. 2Handheld and Portable: This hand held electric capping machine is compact and lightweight, easy to carry and operate, and can be held with one hand. 3Easy Operation: This electric capping machine can be started by pressing the button, with automatic shutdown, silent operation, overload indicator. 4Ergonomic Handle: This handle design relieves blisters, fatigue, and potential carpal tunnel damage to the operator from hand and wrist timeouts. 5Adjsutable: The adjustable design inside the capping machine can effectively avoid the damage of the valve cover and reduce the wear inside the valve plug.