A useful tool to prick out holes in the supply hose to put in the capillary hoses for your irrigation system. You only have to put the puncher press on the hose and prick out the hole aimedly with a little turn. After you had removed the puncher press you push the slider to take off the rests of the hose. It is important to consider that the pricked holes shrink in no time. So you should insert your capillary hose instantly after the pricking out of the hole to inhibit that the hoses don't fit any more.