What extra do the side-cutting models have?
The PZ-59, PZ-77 and PZ-78 also cut conductors (wire), besides extracting screws.
Can they be used on hardened steel?
They are not recommended on hardened or heat-treated steel screws. They are ideal for ordinary steel screws.
Are they available in stock?
Some are in stock, the rest on order, with fast delivery in Bucharest and across the country.