| Brand | Unbranded |
|---|---|
| Shank Type | R8 Shank |
Check the listing for details. Metric Boring Head, R8 shank (Bridgeport), with tools and box. Condition: Used. Listed at 225.00 USD. R-8 (Bridgeport) arbor. 18 mm shank boring bars (.7087 in). You can cut down the shank of any 3/4 boring bar to fit. With boring bars, in box. 18 mm holes (.7087 in) in boring head.