Summary

I needed a milling bit fan. I've seen this trick used in machine shops and on the the other machine to clear chips. However I could't find any designs or I was looking for the wrong thing. I ended up drawing one it works like expected the fitting can be improved if any one is up for the challenge.

It's made using Ultimaker 2 and took around 12 minutes to print with no infill.
Material: PLA

Print Settings

Printer Brand:

Ultimaker

                                            <p class="detail-setting printer"><strong>Printer: </strong>                     <div><p><a rel="nofollow" href="https://ultimaker.com/" target="_blank">Ultimaker 2</a></p></div></p>                                                                                <p class="detail-setting rafts"><strong>Rafts: </strong>                     <div><p>Doesn't Matter</p></div></p>                                                                                <p class="detail-setting supports"><strong>Supports: </strong>                     <div><p>No</p></div></p>                                                                                <p class="detail-setting resolution"><strong>Resolution: </strong>                     <div><p>0,15 mm</p></div></p>                                                                                <p class="detail-setting infill"><strong>Infill: </strong>                     <div><p>no</p></div></p>

Milling bit fan