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Description
Truck Tuner Makes 'em Really Roll
Tunes HO & On30 scale railroad truck bearings
Meets NMRA's recommended 60-degree contour
Cleans burrs and grime
A Micro-Mark Exclusive
Increases train length that a locomotive can pull by 20%
Reviews
4.5
11 ratings
5
4
3
2
1
Best purchase
So happy to finally get my hands on one of these. My rolling stock says to tell you Thanks!
C
Chris · May 5, 2026
Awesome!
I knew to trains and was turned onto this tool by a fiend. Used it once and was blown away. It works great! Highly recommend it. Well worth it.
P
Preston · November 26, 2025
Wish it worked on both sides at once
My only complaint is the constant flipping in order to tune all 4 bearings. When you have many to tune, this becomes tedious. Add in some distraction and sometimes you forget if you've tuned one side or not. Having the sharpener on both ends would cut my work by half. So far it has worked great on Athearn, Roundhouse and Walthers trucks. Not so much with Atlas as their trucks are somewhat narrow and hard to pry apart to get the tool in.