Ritchey Grinder Bits are used with the tools on the Ritchey Livestock engravable tags. A versatile, high-quality cutter made of high-grade steel for use on wood, plastic and soft metals. Ideal for shaping, hollowing, grooving, slotting, inlaying, and making tapered holes in soft metals, plastics and woods, especially on curved surfaces.
Bit diameter: 1/4″. Shank diameter: 1/8″
http://www.youtube.com/watch?v=cNM1PkEuZY8#t=17
Ritchey tags are durable, visible, and a convenient way to tag your livestock. Each engravable tag is dual colored, the outer edge can be engraved away to reveal the second color underneath. This allows for permanent numberning and customizable tags.
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