We have put together some of the frequently
asked questions we have received from users.
You may find the information useful,
so we strongly recommend giving
these FAQ a look-through before sending your question to OLFA.
Product drawings, detailed dimensions and tolerances are trade secrets of OLFA. For rough dimensions of snap-off blades, see the blade specifications page of this website.
OLFA's silver and black blades are made of the same material, but the black blades are sharper, so they penetrate and cut materials better.
The silver blades balance cutting performance and durability, while the black blades are recommended for users who are looking for initial cutting power.