Affix precision optical or ophthalmic lens blanks in metal blocks.
Data from U.S. Department of Labor
What do Hand Blockers do?
Affixes precision optical or ophthalmic lens blanks in metal blocks used to hold blanks during grinding and polishing operations: Selects blocks according to size of lens blank and heats blocks or lenses over gas burner to prepare for adherence of pitch or wax. Pours molten pitch into block, using ladle, or melts wax over holding surface of block, using torch. Presses and centers lens blank into wax or pitch. Pushes lens to test for adherence to block and positions blocked lens under fan for cooling. May smooth and remove sharp edges from lens, using grinding wheel. May test centering of lens in block, using lapping machine.
Should I be a Hand Blocker?
You should have
degree or higher and share these traits:
You hold your emotions in check, even in tough situations.
You can always be counted on to do a good job.
You pay close attention to all the little details.
Also known as:
Blocker, Hand, Blocker, Heated Metal-Forms, Panama-Hat Blocker, Western-Felt-Hat Blocker, Wool-Hat Blocker
How to become a Hand Blocker
Hand Blockers generally graduate from high school and get on-the-job training. Think about earning a Certificate or Associate’s degree to increase your chances of finding a good job.
Check out these schools offering
Hand Blocker-related education!
Careers Similar to Hand Blocker