Product Details:

Use with TE-Y bits over 1-3/8 diameter
Solid and reliable adapter, to be greased before use
Drilling through-holes with an extended hammer drill bit
Drilling extra-deep holes in diameters N/A in and larger
Working at a great distance from the working surface (e.g. on ceilings)

Nominal Diameter: 1-1/4 in
Working Mode: Hammer drilling
Connection Type: TE-Y (SDS Max)

Package Includes:
(1) Drill bit extension TE-FY-E85
(1) Extension adaptor TE-Y-AD

Hilti PN: 3424019