These tapered end mills were designed to give our customers the ability to cut very fine detail and maintain tool strength. It is well known that the smaller the tip size the weaker the tool, but because these tools 'taper out' they will have much more strength. We stock them with 5 degree (10 included angle) and 7½ degree (15 included angle) with tip sizes from .005 on up. If you do not see your size please call or e-mail and we can quote prices.