Hole in Jig is for 0.9 - 1mm drill.
Hornby R7150 Hornby 6 Pin Loco Decoder Chip (NRMA) (N Gauge / 6 Pin)
Hornby R7150 Hornby 6 Pin Loco Decoder Chip (NMRA) (N Gauge / 6 Pin)
Kato N Gauge - Power pack for UK and various N gauge track
PECO ST-301 Starter Track Set 2nd Radius Curves Setrack N Gauge Track
PECO ST-300 Starter Track Set 1st Radius Curves Setrack N Gauge Track - C
N gauge track screws Fleischmann, peco, Mini Trix suit Hornby TT. alt track pins