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HARFINGTON Forstner Drill Bit 33mm (1-5/16") Tungsten Carbide Wood Forstner Bit Opener Cutter for Hinge Hole Drilling Woodworking, Black : Amazon.co.uk: DIY & Tools
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Famag Bormax 2.0 Ws Prima Forstner Bit With Pilot Drill Long, 60mm Dia X 150mm from Westcountry Machinery 4 Wood
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