Dewalt DWD520K Hammerdrill KitsDewalt DWD520K Features Hammer Drill Kits 10 amp motor delivers increased drilling performance Patented DeWalt built motor design generates more power with increased overload protection for added durability Dual mode: hammer drill drill for versatility in masonry, wood, or steel drilling applications Additional Information Amps [Nom] 10 A Chuck Size 1 2 in Control Type Trigger Cutting Cap. [Max] 1 2 in Cycle Rate [Max] 3,300 blows min Drive Size [Nom]