In 2011, Corning replaced the FBC-001 with an upgraded version called the FBC-002. The benefits of the FBC-002 that initiated this change are: extended blade life from 1,000 cleaves to 5,000 cleaves; the FBC-002 prevents excessive bending that can result in permanent damage to the tool's tab; and better control of the bend radius when cleaving, which localizes the bend point and minimizes twist, resulting in a higher quality cleave. The FBC-001 is now obsolete as a result.
You can view a video on how to use the FBC-002 Cleaver here.
In 2011, Corning replaced the FBC-001 with an upgraded version called the FBC-002. The benefits of the FBC-002 that initiated this change are: extended blade life from 1,000 cleaves to 5,000 cleaves; the FBC-002 prevents excessive bending that can result in permanent damage to the tool's tab; and better control of the bend radius when cleaving, which localizes the bend point and minimizes twist, resulting in a higher quality cleave. The FBC-001 is now obsolete as a result.
You can view a video on how to use the FBC-002 Cleaver here