Drilling and Reaming MCQ with Answers

A reamer is a multi-point cutting tool used for enlarging by finishing previously drilled holes to accurate sizes.

Cast iron does not require any coolant during reaming because, graphite in the cast iron acts as a lubricant.

Flutes are the spiral grooves which run to the length of the drill. The flutes helps to
1. To form the cutting edges
2. To curl the chips and allow these to come out
3. The coolant to flow to the cutting edge.

Drill drift is a wedge shaped tool used for removing the taper shank tools from the nose of the machine spindle.

A hole, which is not made through full depth of the component is known as blind hole.