Do not waste your money on a pair of ABS or PLA or other
 plastic gear that may strip or even melt!
  This is a Nylon Gear for Hunt Boston Electric Pencil Sharpener Model 18 and 19
Also fit X-acto 18xx and 19xx CN series sharpeners
All sharpeners shown on images are for fitment illustration only
This fine Nylon gear has improved design 6mm wide face for better durability and performance
Our gear is 20% thicker compare to OEM and other replacements
It fit snugly and won't slip of the shaft thanks to fine tuned center hole
configuration and 15 degree Helical teeth angle
Made out of Nylon - tough and flexible plastic
Nylon naturally slippery, no lubrication on gear teeth required!
We recommend 1 drop of machine oil on to the cutter shaft though.

Only Nylons should be used for gears where a slippery surface is desired.
  All other materials (PLA, ABS, PET, etc.) will grind creating a plastic dust and eventually fail!

For details, please review all pictures, or you can find installation videos on YouTube

We subsidize shipping cost

Material Nylon
70 tooth
Diameter 53.8mm
Hub width 8.2mm


If your Boston 19 sharpener has inner gear stripped (incorporated in to ABS plastic frame)
Sharpener is not included - image is for reference only
Thanks for reading.