Question

Consider the following statements:
The helical flute in a twist drill provides the necessary
1.Clearance angle for the cutting edge.
2. Rake angle for the cutting edge.
3. Space for the chip to come out during drilling.
4. Guidance for the drill to enter into the workpiece.
Which of the statements given above are correct?

• A. $1$ and $2$
• B. $2$ and $3$
• C. $3$ and $4$
• D. $1$ and $4$

Answer 1

The correct option is B $2$ and $3$

The helical flute in a twist drill provides the necessary
a. Rake angle for the cutting edge.
b. Space for the chip to come out during drilling.