Gripper is a kind of fixture, made of aluminum-alloy, used to hold brush pieces and fix them tightly on the worktable of brush making machines , here are some examples: Grippers for curved brooms Grippers for small flat brushes As you could see from the above pictures, grippers are made exactly according to the brush shapes. If the brush shapes are similar, it's possible for operator to use the same grippers to make another similar brush ...