+1 to ^^^ if it is Hardie board or Hardie shake and use an impact-rated masonry bit....no standard twist drill bits or paddle bits.Doesn't look like Hardie Backer Board as it's usually tiled upon. However, wear a mask. Hardie board is a cement board and contains silica. Silica can do nasty things to your lungs. Drilling will send dust airborn. Sorry can't help with the fishing part.