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Bosch Professional Metallbohrer HSS-TiN (Ø 2,5 mm) : Amazon.de: Baumarkt
Amazon.com: ASNOMY 7PCS TCT Hole Saw Kit for Metal, 16-30mm Tungsten Carbide Tipped Hole Saw Hole Cutter Drill Bit with Titanium-Plated Pilot Drill bit for Hard Metal, Stainless Steel, Iron, Wood, Plastic :