Some high-quality jackhammers have a soft start, which helps you maintain control and accuracy. A non-standard size could restrict your choice when you're looking for replacements. The standard size for jackhammer bits is 1 1/8 inches. An auxiliary (side) handle is a big benefit when working at an angle. If you need an extension cord, make sure it's of sufficient diameter to transmit the required voltage safely.Īlthough you should try to work with the jackhammer in a nearly vertical position, that's not always possible. Metal casings give more protection than plastic ones.Ī long cord is useful. Jackhammers tend to get pretty rough treatment. If all other things are equal, then a stronger motor is arguably more durable. The power of the electric motor might seem like an important aspect, but most of these tools are over 11 amps, which is plenty. As a result, powerful impacts can make the jackhammer more difficult to control. While bigger impact forces result in more demolishing power, those impacts are felt through the handles. Ranges vary from 45 to 60 joules, or 33 to 44 ft. Impact force is an area where inexpensive jackhammers sometimes deliver figures as high as the pricier ones. However, because that's an infrequently used unit of measurement, many manufacturers quote foot pounds (ft. With jackhammers, impact force has traditionally been rated in joules. The impact force is the actual amount of energy transmitted with each blow.

Hand breaker