Face Frame Counterbore
| Part Number | Counterbore Diameter | Pilot Diameter | Length | Type |
| 3/8" Shank | ||||
| FF301 | 3/8" | .136 | 4" | Standard |
| FF301SP | 3/8" | .136 | 4" | Spiral Flute |
| FF302 | 3/8" | .136 | 6" | Long |
| FF303 | Replacement .136 Pilot Fishtail Drill Bit (HSS) | |||
| FF304 | Replacement Set Screw Uses 5/64" Hex Key | |||
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