allen key

Hey all! I've lately been noticing some draught coming from the left side of the left panel of two of my windows. I understand that you can adjust the tightness of the window against the frame by turning the lock head with an Allen key. Unfortunately, only the right panel of my window has a...

Hi, I'm thinking I need to change the cartridge in the bathroom mixer tap. It's very stiff and only runs hot water. I've located the grub screw (I think) but can't make out what sort of key it needs. It appears to be circular as a opposed to e.g. hexagonal. I've tried a couple of allen keys...