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Amazon.com: Bosch Professional Forstner Drill Bit (Ø 40 mm, Length 88 mm, Drill Accessories) : Industrial & Scientific
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Amazon.com: Proxxon 28255 Diamond twist drills 2 pcs, 1/32" + 3/64" (0,8 + 1,2 mm) : Industrial & Scientific
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5 pieces diameter 3.5 mm HSS Co 5% cobalt spiral drill/metal drill bit DIN 338 – drill / steel drill 135° point angle and split point : Amazon.de: DIY & Tools
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