| 摘要 |
A pyrographic iron for sculpting fine feather barbs on a realistic wooden bird carving uses interchangeable tips slide fitting on the irons. The tips have a head with a flat surface tapered toward one or two outer edges, the surface having from 3 to 100 serrations per inch extending outwardly on the head to the outward edge or edges. The serrations form crests and valleys, the crests charring the barb lines and the valleys limiting the depth of charring.
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