the Iridium sanding discs will get the job done
Diameter (TD): M45 - 45mm
The self-adhesive
Mirka Abranet Ace HD sanding discs with a P80 grit combining an improved woven mesh backing that increases the lifetime of the abrasive and making the sanding process faster
16 x 800mm SDS+ Masonry Drill Bit Key Benefits
Makita 6 Piece Electricians Hole Saw Kit (D-47123) - Clearance 100mm the Iridium sanding discs willMulti Material Holesaw Kit The Makita 6 Piece multi material electricians holesaw kit is designed for fast, clean cutting across a wide range of materials including timber, plasterboard, plastics, and thin metal. Designed for use by electricians, plumbers, and construction professionals, this kit provides the most commonly used holesaw sizes required for electrical boxes, conduit access, downlights, cable routing, and pipework installations. Supplied