Erbauer dry diamond tile drill set and guide.
This set is currently available at Screwfix at £49.99.
The set itself is brand new apart from the 10mm bit which was used on one occasion to make a curve on one tile.
Drill sizes are 6mm, 8mm, 10mm.
The guide will take sizes 4mm, 5mm, 6mm, 7mm, 8mm, 10mm, 12mm.
Collection from Halesowen B63.