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

In __________ type of drill, the grinding of rock into small particles is carried out through the Abrasive effect of a b…

A _______________ is also known as roto-hammer drill or masonry drill.

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

_______________ are the most commonly used equipment for transportation.

____________________ are same as Spur point bits, but can be used in metal, wood and plastics.

__________________ is the process of using a drill bit in a drill to produce cylindrical holes in solid materials, such …

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