Woodworker's Journal 2004-28-4, страница 13

QUESTIONS

2 mmm

Not jusl for looks: the colored coating on your router bits serves an important function in protecting your cutters, says Bill Hylton.

Actually, Wayne, f \ neither of you is correct. The colorful material you're discussing isn't paint, it's a high-tech industrial coating.

The heat-resistant, nonstick coating diminishes

friction and drag, reduces pitch buildup, and prevents rusting. These are significant benefits for some, perhaps less for a hobby woodworker than for industrial operators.

Heat dulls cutters quickly, yet it's an unavoidable byproduct of any high-speed cutting operation. Since it's a lubricant between the tool and the wood, the coating reduces friction, translating into reduced kea:. Because it is non-stick, it doesn't allow the resins and pitch to build up on the cutter surface.The coating seals the bit to prevent rusting and corrosion.

The fact that the coating-can be colored and the color can be — and is — used as a brand II) is just icing on the cake.

— Bill Hylton _/