Since we’ve seen Bosch ramp up dust collection on their rotary hammers, you’d expect other manufacturers to be following suit. Recently, Dewalt introduced their D25301D-XJ Dust Extraction Telescope for their corded and cordless SDS rotary hammers.
Adding only 1.4 lbs. to your rotary hammer, the Dust Extractor can be used to drill dust-free holes up to 16 mm (5/8″) in diameter and 150 mm (~6″) deep. It’s easy to assemble and remove without tools and comes with with a 150 cm (5′) long, 35 mm (1-3/8″) diameter rubber hose and a side handle.
The only place online selling the D25301D Dust Extractor so far seems to be Toolstop in the UK. If you order it there it’ll cost you $76 plus $60 shipping. However you can probably beat that by calling your local DeWalt dealer, or waiting a while for other online stores to catch on.