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Face Mill Arbors
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Mount large-diameter milling cutters securely in Bridgeport and similar milling machines that have an R8 taper spindle.
Shank Thread | Head | Nose | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
For Arbor Hole Dia. | Size | Gender | Dia. | Lg. | Dia | Lg. | For Keyway Wd. | Material | Fabrication | Each | ||
| 1/2" | 7/16"-20 | Female | 1 3/8" | 1" | 1/2" | 9/16" | 1/4" | Steel | Heat Treated | 8778A11 | 0000000 | |
| 3/4" | 7/16"-20 | Female | 2" | 1" | 3/4" | 11/16" | 5/16" | Steel | Heat Treated | 8778A12 | 000000 | |
| 1" | 7/16"-20 | Female | 2.38" | 1" | 1" | 11/16" | 3/8" | Steel | Heat Treated | 8778A13 | 000000 | |
| 1 1/4" | 7/16"-20 | Female | 2.88" | 1" | 1 1/4" | 11/16" | 1/2" | Steel | Heat Treated | 8778A14 | 000000 | |
| 1 1/2" | 7/16"-20 | Female | 3 1/2" | 1 3/4" | 1 1/2" | 1" | 5/8" | Steel | Heat Treated | 8778A15 | 000000 | |
Quick-Change Milling Machine Tool Holders
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Swap tool holders in seconds without a wrench. This R8 quick-change system replaces conventional drawbar setups that require multiple turns to change tooling. A brass locking button and spring-loaded collar allow one-handed tool changes, so you can move quickly between drilling, milling, and facing operations. The R8 body installs in your milling machine spindle, letting you switch holders to reduce downtime between operations.
