The purpose of helical grooves in a twist drill is to
1. Improve the stiffness
2. Save a tool material
3. Provide space for chip removal
4. Provide rake angle for the cutting edge
Select the correct answer using the codes given below:

1 and 2

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2 and 3

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3 and 4

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1 and 4

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Solution

The correct option is C 3 and 4
The purpose of helical grooves in a twist drill is to
a. Provide space for chip removal
b. Provide rake angle for the cutting edge

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Similar questions

83. With what purpose is the Government of India promoting the concept of “Mega Food Parks”?

i) To provide good infrastructure facilities for the food processing industry.

ii) To increase the processing of perishable items and reduce wastage.

iii) To provide emerging and eco-friendly food processing technologies to entrepreneurs.

Select the correct answer using the codes given below:

V_{c} = 30

20^{\circ}

10^{o}

0.125 m m

0.22 m m

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