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.

So, he designed and patent his own. Under US patent #594114, simply titled “pencil sharpener,” the patent describes a simple, light-weight, crank-powered pencil sharpener that caught the shavings.

Crank handle pencil sharpener online, Hand Crank Metal Pencil Sharpener Charlie Foxtrot Vintage online ...

retains the visceral experience of sharpening your pencils by hand while offering a useful way to collect pencil detritus. Unlike most electric and hand-crank sharpeners, you'll also get a clear ...

Isn’t this pencil sharpener for kids from StudentsZone ... The handheld sharpener is reminiscent of old school sharpeners with a crank at its back so kids can experience the manual work with ...

This article was taken from the March 2015 issue of WIRED magazine. Be the first to read WIRED's articles in print before they're posted online, and get your hands on loads of additional content ...

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 ...