| This N.D.R can be used at any direction such as upward, downward and horizontal way to collect all dust. Also at construction site this N.D.R is available to use at air drill machine to be free from the stone dust.Description of N.D.R-This N.D.R is designed for all drilling machines as a safety protection cover.-The material is used super precision plastic and transparency for the correction.-This cover can be used to increase work efficiency and can be protected from the harmful all dust materials. | 
