Description

The DT9420-QZ is a DEWALT EXTREME 22mm x 570mm SDS-Max 2-cutter drill bit for deep 22mm drilling in reinforced concrete. The extended length accommodates through-wall drilling in thick construction and deep M20 chemical anchor installations.
EXTREME 2-cutter carbide head and four-flute helix provide consistent performance at 400mm+ working depth in SDS-Max class machines. Retorted core for flute durability.
Compatible with all SDS-Max rotary hammer drills. Suitable for deep M20 anchor installation and through-wall drilling in thick concrete structures.