1、Excellent Metal Material: The connector of this capping machine bit is made of metal, which is strong and wear resistant, not easy to be damaged, and has a long service life. 2、Rubber Gasket Design: This electric capping maching bit is designed with rubber gasket, which can be waterproof and leak proof, making the interface tight. 3、30 To 40MM Cap Diameter: This electric capping maching bit has a diameter of 30 to 40mm, which can be used to tighten many types of bottle caps, very convenient. 4、Easy To Use: This electric capping maching bit is very easy to use, you just need to install it on the electric capping machine to use it. 5、Wide Application: This electric capping application is very wide, and can be used to fasten mineral water bottles, laundry detergent bottles, medicine bottles and so on.