Pencil sharpeners are an essential tool for students ... The all-metal manual sharpener features an ergonomic anti-microbial crank handle coated with germ-killing disinfectant.

Hand-cranked pencil sharpeners work just fine, and maybe that is what makes them a perfect object to get the heavy duty treatment. And if a nitro pencil sharpener wasn't enough for you ...

Budgets being what they are in teaching these days, the best pencil sharpeners she ever saw in her classroom were the poorly-made plastic versions of those wonderful hand-crank ones we all knew ...