| 摘要 |
A cutting tool for forming a hole in the wall of a plastic pipe has a body portion defined by a rear grasp portion and by a frontal portion. The frontal portion is provided at one end with a through going vertical passage which accommodates the cutting element therein and guides the cutting element. A frontal portion of the body has a mounting pin and the body has an upper compartment with a spring. A pressure handle enables pivotal displacement thereof between an erected position and a depressed position which enables forceable displacement of the cutting element from an uppermost position to a lowermost position and vice versa.
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