In _________ the bits for Jack hammer and drifters are forged on one end of the drill Steel.

________________ is a Jack hammer mounted on a tripod with legs spread out to grant sufficient stability to the drill.

A _____________ roller consists of a flat platform below with number of smooth rubber tyre wheels are mounted on two or …

____________________ are ideal for drilling large diameter and deep holes in wood or thick man-made boards.

________________ type of excavator carries the skimmer at its lower end.

________________ consist of a vibrating unit mounted on a screed, plate or roller.

_________________ type of rollers rely upon their deadweight to carry out consolidation work.

_________________ is a self propelled machine which is used mainly to exert a powerful tractive force for pulling other …