What type of tool is best suited for making precise angles in pipe fitting?

The sliding T-bevel is an essential tool in pipe fitting because it allows for the measurement and transfer of angles accurately. Its adjustable arm can be set to any desired angle, which is crucial when dealing with various configurations and fittings in pipework. This adaptability makes it particularly useful for creating precise angles that might not correspond to standard measurements, as it can easily be locked in place once the desired angle is established.

While a protractor is effective for measuring angles, it is less practical for transferring those measurements to materials being cut. A try square, on the other hand, is excellent for checking right angles but does not assist in measuring or establishing non-right angles. A level is primarily used for determining horizontal or vertical alignment rather than for measuring angles, which makes it unsuitable for the specific task of making precise angles in pipe fitting. Therefore, the sliding T-bevel stands out as the best tool for this particular need.