A drill is a tool fitted with a cutting tool attachment to driving tool attachment usually a drill bit or driver bit,used for boring holes in various materials or fastening various materials together with the use of fastener.the attachment is gripped by a chuck at one end of the drill and rotated while pressed against the target material.the tip, and sometimes edges , of the cutting tool does the work of cutting into the target material.this may by slicing off thin shavings, grinding off small particles,crushing and removing pieces of the work pics, countersinking, counter boring, or other operation. Drills are commonly used in woodworking, metalworking, construction and do-it-yourself projects. S