Mokuba Carbon Steel Diamond Point Chisel 10mm-32mm A-3

Diamond Point Chisels are the best hand tools for cutting V-shaped grooves, or sharp internal corners into hard materials such as stone, concrete and metal. 

These chisels are constructed out of Mokuba's own special carbon steel for machine structural use, that has been hardened via induction hardening methods ideal for chisels.

The tip especially has outstanding hardness and durability, which you can feel with every strike of the hammer. The pyramid-shaped tip is great for efficient chiseling of concrete, and for splitting blocks. 

These chisels come in a variety of seven sizes, so you're sure to find the one that's most suitable for your needs.