Correct option is C
‘B’ grade V-blocks are typically made from
cast iron due to its
good wear resistance, rigidity, and dimensional stability. Cast iron is an ideal material for V-blocks because it can absorb vibrations and does not easily deform under load. Grade B V-blocks are used for general workshop purposes, where precision requirements are less stringent than in grade A blocks.
V-Block Purpose:
· Used to hold cylindrical workpieces securely during marking, drilling, or inspection.
· Provides stability and accurate alignment.
Grade Classification:
·
Grade A: Made from hardened and precision-ground materials for inspection purposes.
·
Grade B: Made from materials like cast iron, used for general workholding.
