Use your key-tip handpieces with a slip-joint flex shaft. The Foredom HP771 adapter connects a standard key-tip handpiece to the handpiece end of a slip-joint flexible shaft, expanding the tools you can use with your existing shaft connection.
It is especially useful for workshops working with European-style slip-joint systems and Foredom key-tip handpieces. Foredom also confirms compatibility with key-tip tools such as Kate Wolf's Belt Sander.
Connection direction
Slip-joint flexible shaft → HP771 adapter → key-tip handpiece or tool.
Select this adapter by the shaft and handpiece connections. A motor model alone does not establish compatibility: the shaft installed on that motor must have a slip-joint connection at the handpiece end.
Compatibility guide
| Your shaft connection | Handpiece or tool connection | HP771 suitability |
|---|---|---|
| Slip joint | Standard key-tip handpiece | Compatible |
| Slip joint | Kate Wolf's Belt Sander with key-tip connection | Compatible |
| Key tip | Slip-joint handpiece | Not compatible — use HP770 for this direction |
| Heavy-duty square drive | Key-tip handpiece | Not compatible |
| Key tip | Key-tip handpiece | Connect directly; HP771 is not needed |
| Slip joint | Slip-joint handpiece | Connect directly; HP771 is not needed |
Specifications
- Brand: Foredom
- Manufacturer part number: HP771
- Type: Shaft-to-handpiece connection adapter
- Shaft side: Slip joint
- Handpiece side: Key tip
- Approximate length: 3-1/2 inches
- Approximate diameter: 5/8 inch
- Country of origin: United States
What's included
One Foredom HP771 adapter. Handpiece, flexible shaft, motor and other attachments are not included.
Before use
Check both connection styles before ordering and follow the operating limits of your handpiece, shaft and motor. This is a connection adapter, not a speed controller or a duplex-spring attachment. Foredom recommends these adapters primarily for experienced flex shaft users and states that adapters are supplied without a manufacturer's warranty.