Tips and useful information:

End mill sharpening

Triple-T End mill sharpening is among the best in the industry. Triple-T is able to sharpen any of your cutting tool requirements in either HSS or carbide. All carbide end mills are completely sharpened on CNC machines. Your carbide end mills are sharpened on all exposed surfaces giving you the following benefits:
- Virgin carbide exposed on all cutting edges
- Radial rake angles (hook) is maintained by grinding the inside of the flute surface.
- Precise clearance angles are reground giving good as new cutting action.
- Superior finishes on all ground surfaces
- Ground under a flood coolant to eliminate damage caused by over heating.
This same quality is put into sharpening all HSS milling cutters over ¾” diameter and all roughcut end mills regardless of diameter. Triple-T also offers sharpening of special drill points, arbor type milling cutters, blueprint specials, reamers, counter bores, and many other types of cutting tools.

Sharpening End mills - End mills should be sharpened periodically to maintain a keen cutting edge for reliable and efficient machining. End mills that are sharpened before the cutting edges exhibit excessive wear also provides another major benefit, that is, the overall life of the end mill is extended because you need only remove a few thousandths of material from the cutting edges for each sharpening. Endmills having excessive wear will generally require 0.007" or more material removed from the cutting edges for each sharpening, therefore, you will have less total cutter life due to fewer sharpenings due to the loss of cross sectional area and helix angle. Triple-T recommends a maximum of 12% of the nominal diameter be removed before replacing the tool.

Save End mill Packaging - The precision cutting edges common to solid carbide end mills (like most cutting tools in general) can be easily damaged when not protected properly. Our packaging materials are configured into an inside and outside rigid plasic tube which helps protect the end mills from major damage. The end mill tubes should also be saved for subsequent re-packaging before transporting the used end mills to your sharpening company. There is another side benefit for saving the tubes, and that is, there is less chance of your fingers getting cut when handling the end mills. Whenever possible or practical, you should always wear protective hand gloves when handling the end mills outside of their plastic tubes.