Poundland sell low cost plastic garden taps. I have a recycled plastic drum that I use as a water butt. I do not wish to cut the top off it. I used a hacksaw to cut slots perpendicular to the thread of a radiator lockshield valve. This made it into a tapping tool to cut a thread into the water butt. DIY and lathe videos https://www.youtube.com/playlist?list=PL9D22B5C59E6C92F5 Bike videos https://www.youtube.com/playlist?list=PL27283C20D8ACA64C Model Railways https://www.youtube.com/playlist?list=PLYcygI36v6pSA6Xty3qBeHQqa_stXK_zL
