Atlas Craftsman 10" 12" Lathe 32 and 16 tooth compound Nylon gear 16 / 32 tooth, 1/2" bore for 10-1552x replacement This fine FMD Nylon gear has improved design for better durability and performance It is superior to other plastics replacements Made out of Nylon - tough and flexible plastic Nylon naturally slippery, no lubrication required! Runs quieter and smoother 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 May fit other 1/2" bore lathes as well. 32t gear outer diameter: 2.125" 16t outer diameter: 1.125" Gear face width: "0.3125" (32t gear) + 0.325" (16t gear) = 0.6375" Overall Center bore: 1/2" (0.5") DP: 16 Do not waste your money on ABS or PLA plastic gear that may strip or even melt! Introductory price - please share installed images and review.