WoodOwl Bellhanger Installer bits have ground fluted cutting edges and have a wire-pull hole for easy pull back of line and wire through walls, floors, and ceilings. These bits are made from premium alloy steel, making them safe for drilling wood, plaster, lathe, and light masonry. Available in the following sizes:
| Item # | Diameter |
| 04181 | 1/4" (6mm) |
| 04182 | 5/16" (8mm) |
| 04183 | 3/8" (9.5mm) |
| 04185 | 1/2" (13mm) |
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