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Which of the following taper is used for ‘shanks of the twist drills’?

(a) Morse taper

(b) Brown taper

(c) Sharpe taper

(d) Jarno taper

The question was asked in an online interview.

My doubt stems from Plug and Ring Gauges for Self holding Tapers in division Limits, Fits and Gauges of Engineering Metrology

1 Answer

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Correct option is (a) Morse taper

Explanation: Morse taper is exclusively used on the shanks of the twists drills. For a different type of morse taper, taper is slightly different. In most of the cases, taper is 5/8 inch per foot.

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