Heavy drilling with Dewalt
- Fast penetration through masonry: The solid 4-cutter carbide head cuts smoothly through concrete, stone, and brick to deliver clean results.
- Rapid dust and debris removal: The four-flute helix clears dust quickly from deep holes, ensuring you maintain optimal drilling speed without clogging.
- Reliable SDS-Max power transmission: The reinforced steel body and optimized shank provide dependable strength and reduce breakage during demanding hammer drilling.
With the Dewalt DT9447-QZ SDS-Max Extreme hm hammer drill bit, you drill powerful, clean large-diameter holes through reinforced concrete, masonry, and natural stone. The robust 4-CUT solid carbide head with four cutting edges evenly distributes impact energy and prevents jamming when striking rebar. Featuring a 42 mm diameter, a 450 mm working length, and a 570 mm total length, it easily handles deep wall and floor penetrations for pipes and cables. The four-flute helix clears drilling dust quickly to maintain high drilling speed, while the reinforced steel body and SDS-Max shank ensure direct power transmission and minimal breakage risk.
Product description
- SDS-Max drill bit EXTREME HM 42x450x570mm
Features
- Suitable for fast drilling of plug, anchor or through holes in masonry, stone, concrete and brickwork
- Optimised mounting shank ensures perfect grip and optimum power transmission, with hardened steel housing for extra strength and reduced breakage
- Sturdy cutting head is flanked by two separate cutting tips that deliver fast and efficient drilling speed