The RNIB Shop sells various gadgets that can assist with DIY tasks. For example, measuring tapes that provide both tactile and audio information. People who have some useful sight may find high visibility tape useful for marking or highlighting certain areas such as steps.
Mainstream equipment such as nail guns can be quite inclusive, as hammering can be particularly hazardous for people who have a visual impairment. One good source of advice is the government’s safety advice regarding nail guns before holstering up though.
This service from Age UK may also be useful for some Handyperson services from Age UK.
If you’re looking for DIY tips, YouTube is often a good place to go, with plenty of videos explaining how to do things.