M3 HSS BIMETAL 20 mm Hole Saw - MPS BRAND, 50 series, high durability.
OSBORN wavy wire brush with 6 mm shank and 0.30 mm diameter filament
GUILLET hole saw for maximum impact forces of 750W and a diameter of 50 mm
STAYER Diamond crown Ø28mm with M14 type insert for dry multi-material cutting red colour