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Water butt tap or hosetail flat drill bit

Water butt tap or hosetail flat drill bit

Freeflush

£3.99

Price read from Freeflush on 2026-10-15. Check before buying.

Here we have the two most common drill bits used in garden rainwater harvesting. The 26mm flat drill bit is used for connecting the majority of water butt taps (3/4" BSP) and the water butt connector hosetails to the water butt. The 32mm flat drill bit allows a 1" threaded hosetail to be fitted to a water butt. If you're already buying a water butt connector or filter check to see whether a drill bit in included. The 3P filter for example has a 32mm drill bit included.

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Where this comes from

The part other shops don't tell you. Three separate questions, kept separate on purpose, each with its source.