Rotary Hammers | DEWALT- dewalt sds-plus 8.5-amp keyless rotary hammer ,DEWALT rotary hammers are built for the professional contractor and are designed for speed, durability and ergonomics. View models and shop online. By signing up you agree to receive emails from DEWALT ® with news, special offers, promotions and other information. with news, special offers, promotions and other information.1-1/8 in. SDS Plus Rotary Hammer Kit - D25333K | DEWALTPrint. Our 1-1/8 in. SDS Plus Rotary Hammer Kit delivers high performance with low vibration and a lightweight design for working all day. It's built to meet the demands of professional contractors. The durable German-engineered hammering mechanism delivers 3.5 joules of impact energy, giving you the speed to get through jobs fast.