Vee blocks are usually made of hardened tool steel or cast iron.
Hardened tool steel
Most vee blocks are made out of hardened tool steel because of its excellent wear resistance and toughness.
Cast iron
Cast iron is a material commonly used in engineering. One reason for this is that it is an effective absorber of vibration energy so it is suitable for tools used with machinery. In addition, cast iron is resistant to wear and has superior tensile strength.
Vee blocks can also be made out of granite. The high density of the material means that granite blocks are resistant to wear and corrosion. In addition, they are easier to maintain than metal vee blocks and are more dimensionally stable.
Which vee block should you choose?
When selecting a vee block you should bear in mind how often you are likely to use the tool, what you will be using it for, as well as your budget. Although granite vee blocks are the easiest to look after and the most hard-wearing, they are considerably more expensive. Cast iron and steel blocks are much more affordable and will perform just as effectively. However, they will need maintaining more regularly.