BreakdownThe left helical clamp is ground with a radius to achieve a true helical fletch. Each die-cast clamp is precision-ground to assure identical blade matching. Hollow recess allows for thumb and fingertip control preventing slippage in hand. Use the graduated scale at the rear of the base of the Clamp for consistent spacing of feathers and vanes.
I should have done some more research. The helical angle is not a very strong angle and to get it to a little more of a helical, you have to fuss with it a little more than they probably want you to. Still a great machine and very precise. If you are looking for a stronger helical, I’d look into something else before I bought this.
Old school and still the best
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