20mm Hole Diameter Rotary Hammer Drill - 21V Lithium Battery Powered with 2000i/min Impact Frequency

Basically punches through concrete and brick like a much heavier tool—that 2J impact energy per strike makes a real difference when you're up against rebar or hard aggregate, though it won't replace a demolition hammer for sustained heavy chipping work. Most buyers we deal with grab this for drilling anchor holes in masonry or chasing conduit runs through block walls, and variable speed trigger gives you fine control when you hit something unexpected. 2. The brushless motor is the main reason we see fewer returns on these—it runs cooler and lasts longer than the brushed units that tend to burn out under constant load at max impact frequency around 2000 i/min, and the no-load speed tops out at 600 rpm. It weighs 2.5 kg, which is about what you'd expect for a 20mm SDS-Plus rotary hammer, and the anti-vibration handle actually does help on longer jobs (your wrist will thank you after a dozen holes in 4-inch slab). 3. Specs we usually quote: 20mm hole diameter max in concrete, 2J impact energy, variable speed from 0-600 rpm, and it runs on a 21V lithium battery pack that's not included in the kit. Teh chuck is SDS-Plus so you'll swap bits in seconds, and there's overload protection built in—pretty much standdard at this price point but it does save you from frying the motor if you stall it out. 4. One thing we've noticed from handling these: the battery latch mechanism is tighter than on some competitor models, so you'll want to make sure the pack clicks all the way in before pulling the trigger—it's a minor thing but prevents intermittent power loss on the job site. The warranty runs 12 months form invoice date, and we usually have stock in about 20 days or so for the bare tool, though lead time extends if you're ordering more than 50 units at once.