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kwb 706090 Forstner Drill Set, 5 Pieces for Wood 15, 20, 25, 30 and 35-mm with Twisted Shank - - Amazon.com
HJ Garden 35mm Forstner Bit Hinge Boring Hole Saw Drill Bit Tungsten Carbide Woodworking Hole Opener Tools: Amazon.com: Tools & Home Improvement
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