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51451 Solid Carbide CNC Spiral 'O' Single Flute, Aluminum Cutting 9/32 Dia x 5/8 x 1/4 Shank x 2 Inch Long Up-Cut Router Bit with Mirror Finish
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Yonico O Flute Upcut Spiral End Mill 1/8 in. Dia 1/4 in. Shank Solid Carbide CNC Router Bit 31011-SC - The Home Depot
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57329 Metric Solid Carbide CNC Spiral 'O' Single Flute, Plastic Cutting 12mm Dia x 38mm x 12mm Shank x 76mm Long Up-Cut Router Bit
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Amazon.com: SpeTool Single Flute (O Flute) Spiral End Mill Aluminum Cutter Carbide Router 1 inch Cutting Length with 1/4Inch Shank for Aluminum Acrylic PVC MDF Plastic : Musical Instruments
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46327 Solid Carbide Slow Spiral O Flute, Acrylic Cutting 1/4 Dia x 3/4 x 1/4 Inch Shank Up-Cut Single Flute Router Bit
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Amana Tool - Amana Tool - 51480-Z - Solid Carbide CNC Aluminium Cutting Up-Cut Spiral End 'O' Flute Router Bit - 1/4" x 3/4" - 1/4" Shank - 2-1/2" Length - ZrN Coated
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