- Amazon gift card.
- Home Depot gift card. (He can buy his drill and step ladder from there if he needs to)
- Cash.
You do not know what their lifestyle and preference is. Let them decide what they want.
Still, if you want to send something along with the cash or the gift cards, my go-to small appliance gift for the kitchen is usually the dash egg cooker or a lazy fish bottle opener, because they are useful in daily life, take little space, look good, super durable, regiftable and under $20.