In theory, I guess a decent sized block of wood would probably suffice. In this example drilling multiple holes in the wood with my drill press (all square & straight). I've not established lengths and diameters yet, but I shall look at every link that has been posted on this thread-thank you.
Elderflower older growth is very soft up through the center, super easy to run a drill bit up through the end of cut lengths to pull out the punky filling. Find someone who is happy to have you clear out older branches - it will encourage new growth for the owner.
I will probably drill a series of holes in a couple of house bricks-the old type. They are solid and a are a full brick-meaning flush on all 4 sides.
It is not everyone's cup of tea, but I like doing little jobs like that. The drill press tool I have makes drilling through hard material a lot easier.
I feel sure that I will certainly utilise the good ideas/methods that have been shared in this thread, and in the links too-thank you. We can never do too much to help bees, alongside the sugar beet growers and environment agency.
I would check the advised channel depth and bit gauge. Years ago I drilled into logs in various gauges and the bees were never remotely interested. If the channel isn't deep enough, the bees won't use them.
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It is not everyone's cup of tea, but I like doing little jobs like that. The drill press tool I have makes drilling through hard material a lot easier.
I feel sure that I will certainly utilise the good ideas/methods that have been shared in this thread, and in the links too-thank you. We can never do too much to help bees, alongside the sugar beet growers and environment agency.
Orientation and open-ness to the sky are also important factors. You're probably best off placing several in different locations to hedge your bets.