I think it's great, for my hand size (no. 10/11 gloves) it fits perfectly. I use it as mentioned mainly for chuck jaw screws but any machine screw so far has worked perfectly and quickly. I don't think I would ever reach for it for woodscrews as noted by Spectric above. It won't start on it's...
I like this from Rotacraft:
https://www.amazon.co.uk/Rotacraft-RC36-3-6v-Cordless-Screwdriver/dp/B07KJXZ4DX
I use it to change jaws on the lathe chuck.
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You can try to remedy this by opening it back up (Or lifting up the glued on front to check) and checking that the reciever diode has not ended up behind the metal plate, but sits in the little punched opening. Especially on older versions of the board it can bend out of position when installing.
It very well might be beech. You could try soaking it in oil for longer, a few hours, which could help.
Backing out of the cut if you meet too much resistance and resetting/clearing out the cutter can also help.
I assume this is a pine or similar soft wood dowel?
I would avoid anything soft, you want relatively hard and dense for threading with these kits.
Beech or birch works great.
Manpa is actually a Korean company but it looks like they have a UK distributor at www.chainsawbars.co.uk/.
This is probably the one you were looking for? MP21-24-DCT Manpa Mini Carving Bit - Triangular Type With 1/8" Shank