No water needed.

Can use with normal drill machine (Electric drill or SDS-plus hammer drill - Rotation mode only).

Can use for Reinforced Concrete (Reinforced bar 10mm or less).

Diameter is from 25mm to 170mm.

More information is in the product page from below link (from button "Find out more").

Straight shank (for electric drill machine / percussion drill machine)

SDS-plus shank (for SDS-plus hammer drill machine)

Product page "ES-D"