| 摘要 |
A tool suitable for facilitating cutting a balanced flue, the flue comprising an outer pipe and an inner pipe. The tool provides a base which is adapted to engage a worktop , an outer pipe holder part supported on the base, and a cutting guide 3a which encourages a blade to cut around the circumference of either a pipe. The outer pipe holder allows keeps the outer pipe in position, while allowing it to be rotated around its central long axis. Preferably, the outer pipe element is formed of first and second elements 1, 2 which can be longitudinally adjusted with regard to one another. Preferably each pipe holder comprises a V-shaped structure. Preferably the cutting guide is provided by two rigid uprights, with one projecting from each side of the first element of the pipe holder. The cutting guide may comprise a cutting slot and may comprise an abutment to prevent a blade cutting into the inner pipe. The tool may comprise an inner pipe support 10 and may also comprise a deburring tool 15. |
