Question

How the iron blade is fixed into a wooden
handle in tools used to dig the soil?​

Answer 1

Explanation:

The iron blade of soil digging tools has a ring in which the wooden handle is fixed. Normally, the ring is slightly smaller in size than the wooden handle. To fix the handle, the ring is heated and it becomes slightly larger in size (expands). Therefore, the handle easily fits into the ring. When the ring cools down, it contracts and fits tightly on to the handle.