Coupler Trip Pin Pliers for HOn3, HO, S, On3 and O Scale Couplers (KAD237)

Coupler Trip Pin Pliers are a precision hand tool for adjusting the trip pins on HO, HOn3, S, On3 and O scale model train couplers. By gently squeezing these pliers, trip pins can be set to the correct height, helping ensure proper coupling and smoother operation of your rolling stock.

Designed specifically for HO and HOn3 couplers, the pliers feature curved jaw surfaces that minimize kinking when bending or straightening trip pins. This makes it easier to fine-tune pin height and maintain reliable coupler performance across multiple scales.