Amazon.com: GRAFF 2-5/8 Inch SDS Max Rotary Hammer Core Bit - Hole Saw for Concrete, Masonry, Cement, Silicate Brick - Core Drill Bit with SDS Max Shank 20'' (500mm) and Center Drill :
Fisch FSH-134800 Drill/Countersink Set - 1/8-Inch/3mm, 5/32-Inch/4mm, 3/16-Inch/5mm, and 1/2-Inch/6mm - Countersink Bits - Amazon.com
ENT 50025 Holzbohrer Ø 2,5 mm im 5er Pack, HSS-G, Nutzlänge 29 mm, Gesamtlänge 56 mm - geschliffene Premium HSS Holzspiralbohrer : Amazon.de: Baumarkt