In a nutshell
The right choise for
With the Dewalt DT9450-QZ SDS-Max hammer drill bit, you drill large 52 mm diameter holes through concrete, reinforced concrete, masonry, and natural stone with complete confidence. The robust 4-cutter carbide head cuts smoothly through tough aggregate and rebar without binding or jamming, producing concentric, clean holes for secure fixings. Its 4-flute spiral clears drilling dust rapidly, while the reinforced core transfers the full impact power of your SDS-Max rotary hammer directly to the tip. Offering a 450 mm working length and an overall length of 570 mm, this bit is built to tackle deep pipe and conduit pass-throughs in thick structural walls.