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Usually, a user hammers in a nail with both hands. A hand holds a nail and another hand grabs a hammer and hits a nail. In this case, it is easy to hurt a hand and needs so much strength. It is very dangerous and hard especially for woman. So a hammer gun is designed to resolve these problems. It can be used one-handed because a front cap can fix the nail on the wall instead of a hand. And it is able to hammer in the nail easily by pushing a power button without strength.
Chungnam, South Korea