The 6-xx series each have 4 sizes.  The 6-10,20,30 and -40 have a rounded head and are stronger than the very pointy 6-12 series.

The 6-10, 6-22 and 6-32 are also available with super hard heat treated cutting edges.

The English Anvil comes in 2 versions with slightly different jaws.  The 7-35 is the most popular.

We will take off the sharpness of the tips if you ask us to 'blunt the tips'.