![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 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](https://m.media-amazon.com/images/I/619qEQSlWpL.jpg)
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
![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 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](https://www.amanatool.com/pub/media/catalog/product/5/7/57329.jpg)
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
![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 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](https://images.thdstatic.com/productImages/ab3eb0f6-10ef-49da-8d70-9797dc8bb4bf/svn/yonico-spiral-router-bits-31011-sc-c3_600.jpg)
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
![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 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](https://www.amanatool.com/pub/media/catalog/product/5/1/51451_2.jpg)
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
![51414 Solid Carbide CNC Spiral 'O' Single Flute, Plastic Cutting 3/8 Dia x 1-1/8 x 3/8 Shank x 3 Inch Long Up-Cut Router Bit 51414 Solid Carbide CNC Spiral 'O' Single Flute, Plastic Cutting 3/8 Dia x 1-1/8 x 3/8 Shank x 3 Inch Long Up-Cut Router Bit](https://www.amanatool.com/pub/media/catalog/product/5/1/51414_1.jpg)
51414 Solid Carbide CNC Spiral 'O' Single Flute, Plastic Cutting 3/8 Dia x 1-1/8 x 3/8 Shank x 3 Inch Long Up-Cut Router Bit
![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 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](https://www.amanatool.com/pub/media/catalog/product/4/6/46327.jpg)
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
![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 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](https://ooznest.co.uk/wp-content/uploads/2020/07/51480-z.jpg)