29-1/2" SDS MAX Extension Shank
Must be used with a JHMAX-CONN
Connector has double locking SDS-MAX inputs
Every extension has 1 SDS-MAX end that locks into the connector.
Opposite end is inserted into either a SDS-MAX or Spline drill motor depending on the extension you choose.
Any SDS-MAX drill bit, core bit, chisel, or core cutter is inserted into the other end of the connector.
System limited to 1 connector and 1 extension
Hole Size Must be 1-1/4" diameter for bit to pass through the hole being bored