Product Summary

Ultra-Shear Pen Mill Ci – Carbide Inserts for Amazing Tool Life and Cleaner Cuts

The Ultra-Shear Pen Mill Ci uses razor-sharp nano-grain carbide inserts mounted in a precision-machined milling head. These are exactly the same inserts used on our Ultra-Shear Pen Size Square turning tools. The special long-life carbide edges will shave through exotic hardwoods, acrylics, polymers, stabilized woods, cast hybrids and even non-ferrous metals with flawless results. When the edges finally get dull, fresh cutting edges are as simple as loosening two screws, turning the inserts 90 degrees and locking them back down. Not only do you have sharper, longer lasting cutting edges, the head is also significantly larger than any other on the market, which means after trimming a ¾” square pen blank, there’s no annoying “halo” of material.

Keeping the milling head perpendicular to the brass insert tube requires a pilot shaft that is carefully sized to fit the tube just right…neither too tight nor too loose. The new Ultra-Shear Pilot-Reamers are cut on precision Swiss lathes to exacting tolerances. We offer the 12 most popular sizes covering virtually every pen kit on the market. In addition to keeping the milling head perpendicular to the tube, the noses of the Pilot-Reamers are fluted to carefully cut away any glue residue or brass burrs inside the insert tube.

Competitive pen mills drive off the pilot shaft, relying only on the set screw to prevent the cutting head from spinning. The part that fits into your drill chuck on  the Ultra-Shear Pen Mill Ci is part of the head, and has a 3-flat design that gives you a very positive lock when you tighten your chuck.

If you turn several different pen styles, we offer two sets. The 5-piece set includes the Pen Mill Ci and the four most popular Pilot-Reamers. The 13-piece set includes the Pen Mill Ci and all 12 Pilot-Reamers. Both sets come in a Woodpeckers plastic case with a custom cut foam liner to keep everything safe and organized. If you only make one or two style pens, you can buy the Pen Mill Ci milling head and just the Pilot-Reamers you need.