engineering recuitment DRDO Technician A 2022 Mock Test Series (Tier I) Fitter Machining Drilling and Reaming
The correct sequence of operations to get a very precise hole is
1
Drilling - Honing - Reaming
2
Drilling - Reaming - Honing
3
Honing - Drilling - Reaming
4
Drilling - Lapping - Reaming