Tools required
The following tools are required for installation:

Power drill.
Hole cutter an appropriate size for the 60.00 mm (2.36 in) centre diameter cutout line.
Drill bit.
Hex wrench (Allen key).
Half round file (or sandpaper).
Marine grade sealant (e.g. Alpha 132 PU Sealant).
Masking / self adhesive tape.