Can you drill into plastic wood?
Also know, can you drill into filler?
Polyfilla is indeed paints. Two pack filler (car filler) would be better. Alternatively start with a much thinner drill bit, keep going through into the brick, then use a wider diameter bit. The downside is that you will need to use longer screws and plugs.
Beside this, is plastic wood the same as wood filler?
Wood filler differs from wood putty in that the filler usually consists of sawdust or wood fibers suspended in a binder, while putty is usually a plastic such as epoxy, fiberglass or polyurethane. Moreover, unlike filler, putty doesn't harden.
You can drive a screw with or without drilling a pilot hole first. For rough construction, you can usually just power screws into place without drilling a hole. However, for finer woodworking projects, you risk splitting the wood without first drilling holes, especially near the end of a board.