What tool is NOT typically used for finishing the top surface of a concrete cylinder?

The flame torch is not typically used for finishing the top surface of a concrete cylinder. In concrete finishing, the objective is to achieve a smooth, even surface that is properly compacted and cured.

A trowel is a common tool for finishing as it can smooth out the surface and create a specific texture, while a floater is utilized for further smoothing of the concrete after initial setting. The tamping rod is primarily used for compacting the concrete during the pouring process, not for the finishing stage.

Using a flame torch does not align with standard procedures for finishing concrete surfaces, as it is more commonly associated with other tasks, such as curing or heating. Therefore, it is not suitable for the purpose of finishing the top surface of a concrete cylinder.