![We re-engineered a 140 year old abrasive pencil sharpener. Metal working prototype, after tweaking the plastic version I shared a while ago. : r/MechanicalEngineering We re-engineered a 140 year old abrasive pencil sharpener. Metal working prototype, after tweaking the plastic version I shared a while ago. : r/MechanicalEngineering](https://i.redd.it/we-re-engineered-a-140-year-old-abrasive-pencil-sharpener-v0-l041z65b2rcb1.jpg?width=4000&format=pjpg&auto=webp&s=a68ac34f50f1dfff81ca40852f1d2481e037d1ac)
We re-engineered a 140 year old abrasive pencil sharpener. Metal working prototype, after tweaking the plastic version I shared a while ago. : r/MechanicalEngineering
![Erasers Pencil Block White, Hi Polymer Jumbo Soft Large Rubber, Smudge Free and Non – Abrasive Erasers, Big Latex Free Eraser Drawing Office and School Supplies for Kids and Artists \(4 PC) – Erasers Pencil Block White, Hi Polymer Jumbo Soft Large Rubber, Smudge Free and Non – Abrasive Erasers, Big Latex Free Eraser Drawing Office and School Supplies for Kids and Artists \(4 PC) –](https://i5.walmartimages.com/asr/b1d622f6-1046-447e-815f-93d977753915.1c0cafac08b91004c13f2a4a689fb8ae.jpeg?odnHeight=768&odnWidth=768&odnBg=FFFFFF)
Erasers Pencil Block White, Hi Polymer Jumbo Soft Large Rubber, Smudge Free and Non – Abrasive Erasers, Big Latex Free Eraser Drawing Office and School Supplies for Kids and Artists \(4 PC) –
![Made in USA 1" Diam x 6" Long, Round Abrasive Pencil Coarse Grade P-16-C SPI - 73150278 - Penn Tool Co., Inc Made in USA 1" Diam x 6" Long, Round Abrasive Pencil Coarse Grade P-16-C SPI - 73150278 - Penn Tool Co., Inc](https://cdn11.bigcommerce.com/s-4s9liwcv/images/stencil/original/products/425663/543649/7315027-23__17230.1625169587.jpg?c=2&imbypass=on&imbypass=on)
Made in USA 1" Diam x 6" Long, Round Abrasive Pencil Coarse Grade P-16-C SPI - 73150278 - Penn Tool Co., Inc
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Made in USA 1/2" Diam x 6" Long, Round Abrasive Pencil Coarse Grade P-08-C SPI - 73150245 - Penn Tool Co., Inc
![Made in USA 5/8" Diam x 6" Long, Round Abrasive Pencil Extra Fine Grade TYP0-XF SPI - 73152779 - Penn Tool Co., Inc Made in USA 5/8" Diam x 6" Long, Round Abrasive Pencil Extra Fine Grade TYP0-XF SPI - 73152779 - Penn Tool Co., Inc](https://cdn11.bigcommerce.com/s-4s9liwcv/images/stencil/original/products/425694/543680/7315028-11__12865.1625169601.jpg?c=2&imbypass=on&imbypass=on)
Made in USA 5/8" Diam x 6" Long, Round Abrasive Pencil Extra Fine Grade TYP0-XF SPI - 73152779 - Penn Tool Co., Inc
Rubberized Abrasive Round Pencil P-03, Fine Red, 6" Length, 1/8" dia. - 88-400-7 - Penn Tool Co., Inc
Pentel® Clic Eraser Grip Eraser, For Pencil Marks, White Eraser, Randomly Assorted Barrel Color, 3/Pack | Lower Huron Company
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Diamond Grinding Wheel Glass Diamond Grinding Wheel Abrasive Pencil Edge Diamond Grinding Wheel For Glass Edge Machine - Abrasive Tools - AliExpress
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Made in USA 3/16" Diam x 6" Long, Round Abrasive Pencil Extra Fine Grade P-36-XF SPI - 73152720 - Penn Tool Co., Inc
![We re-engineered a 140 year old abrasive pencil sharpener. Metal working prototype, after tweaking the plastic version I shared a while ago. : r/MechanicalEngineering We re-engineered a 140 year old abrasive pencil sharpener. Metal working prototype, after tweaking the plastic version I shared a while ago. : r/MechanicalEngineering](https://preview.redd.it/we-re-engineered-a-140-year-old-abrasive-pencil-sharpener-v0-r23jim492rcb1.jpg?width=4000&format=pjpg&auto=webp&s=f9b1b5fadcee0bcab982e8f022135b5b786d51d0)