Bob-Mac Gauge for HO-scale Magnetic Couplers
Does your railroad suffer from phantom uncoupling or derailments due to trip pins set too low and contacting crossing rails?  The Bob-Mac coupler gauge (gage) is the best available gauge for checking HO-scale magnetic couplers.  Benefits of the design include:
- World’s simplest and easiest to use, no moving parts,
- Precision turned plastic, will not short out the railroad, especially valuable with DCC, 
- Ready-to-run, not tedious assembly, no springs to lose, 
- One piece design,
- Pass/NoPass design, reliable independent of user’s height or fatigue,
- Checks both coupler height and trip pin positioning, and
- Works with all brands, including Kadee, EZ-Mate, McHenry, Accumate, Intermountain, Proto 2000.
- “I … believe very strongly that they are the best,” Roger S., Potomac, MD.
Available in HO-scale.