This custom adapter allows HILTI DD series coring machines (DD160E, DD200, DD250E, DD350) to be connected to accessories with 1-1/4" UNC male thread or 1/2" G (BSPP) female ports.
The input end features a HILTI-style locking interface with fine gear teeth, providing secure engagement with the spindle.
Made of precision-machined alloy steel with black oxide finish, this adapter is ideal for professional concrete coring jobs requiring flexible connections.
 
✅ Specifications：
Inlet: HILTI DD spindle interface (internal locking teeth)
Outlet A: 1-1/4" UNC Male Thread
Outlet B: 1/2" G (BSPP) Female Thread