Beadhead guidelines ...
BEAD TO HOOK SIZE:
1/16= Size 20,
5/64= Size 18,
3/32= Size 16,
7/64= Size 14,
1/8= Size 12,
5/32= Size 10 & 8,
7/32= Size 6 & 4,
1/4=#2
There are plenty of inexpensive vices around ... check out either of the flyshops in the area ... I'm sure they could point you in the right direction ...