You appear to have a selective memory when it comes to this project. I and others have given you lots of good advice.
For example:
There’s a tool called a centerpunch you want to buy if you do things like this again.
Basically, centerpunch where you want the hole to be, drill a small pilot hole in the punch, and then drill it out.
Those things work fine. The tip I’d give you is to if possible clamp the thing you’re drilling to the scrap material you’re drilling through.
That leaves both hands free for the drill.
@Wombat-metal, @barney: you have the DP126, right? How do you set up pickup height?
There are two ways to set the pickup height: either with the screws to change height on for the entire pickup or individually per string using the hexagon socket screw.
As the pickups are quite high (especially the J pickup), I was thinking about setting them as low as possible and only adjust the hexagon screws.
Does that sound OK?
I just set it using the regular outside screws and ignored the adjustable individual pole pieces 
Same for my P Bass
The general advice I’d add to that is. For anyone using tools who doesn’t use tools for a living. Think more than one step ahead i.e. if I make a mistake, can I fix / recover from that error. If the answer is a no then be smart about your choices. Practice on a scrap piece before you drill, cut, chisel etc.
I’m done with your needless prima donna behaviour. I’m happy you’ve turned your inexpensive Harley Benton bass into something you like.
Radio silence from here on in.