Q. Chisels for metal cutting are (Solved)
1. Hardened in the middle
2. Hardened at cutting edge
3. Hardened all over
4. Hardened at random
5. Never hardened
- c. Hardened all over
1. Hardened in the middle
2. Hardened at cutting edge
3. Hardened all over
4. Hardened at random
5. Never hardened