There is increased awareness of the importance of dust extraction on job sites and Makita® is meeting demand with a growing range of dust extraction solutions. The Dust Extracting Attachment (197172-1) is ideal for use with demolition hammer (1-1/8 in hex shank). It attaches directly onto the bit shaft, from 1 to 4 in away from the surface and the hose is kept out of the way with the convenient hose holders. When used with a job site vacuum (sold separately), the attachment is engineered for maximum dust extraction.