For drilling operation, the
cylindrical hob should always be clamped on a:
Collect
Socket
Jaw
V-block
V-block
V-block jigs are used for drilling
radial holes in cylindrical or spherical work piece. Thecomponent is placed on
the V-block and clamped rigidly by means of a clamping plate and bolt.
Hence, the correct option is (D).
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