engineering recuitment DRDO Technician A 2022 Mock Test Series (Tier I) Production Engineering (Manufacturing) Machining Processes and Machine Tools Machine Tools
A mandrel is
1
A slightly hollow hardened steel shaft that supports works which cannot be otherwise
2
A tapered gauge used for inspection of tapered holes
3
Auxiliary chuck used on lathe for holding small loads
4
Is used in lathe work to hold casting