I have purched the Grip It, 40kg, red fixings and they stated to drill a 18mm hole but that's a size that nearly almost doesn't exist in drill parts so I have drill 19mm holes. These are all drilled ready to go.
The instructions say to hammer gentley the fixings into the wall but they just don't fit as the holes are too small. What am I missing? Do I need to go 2mm higher than the instructions? It's a big 'hole' commitment and I don't want to be left with big unusable holes or a drying rack that falls off the wall. Please help, any more 'aggressive' with the hammer I fear will end in disaster.
One of the pieces has already lost a grey wing