SBS4DCC 4-40 Drill & Tap Set

SBS4DCC 4-40 Drill & Tap Set


This listing is for (1) 4-40 Drill & Tap Set. The set includes (2) #43 HSS drills and (1) 4-40 HSS plug taper tap. These have been selected for use with my 4-40 Nylon Screw and Insulating Washer Set used for securing Streamlined Backshop Services N-scale truck-mounted electrical contacts to the frame of your project car.

Collecting track power from your trucks has never been easier. First remove the trucks from your project and car and replace the plastic wheels sets with metal wheel sets that are insulated on both sides. Next, simply drill out the kingpin hole in your frame using the #43 drill and tap it for #4-40 threads. Then drill a second hole behind the frame bolster to feed wires from inside the car body to the truck contacts. Feed the wires through the hole and solder the red and black track power leads from any DCC decoder to the lug on the truck contacts. Next, place an insulating washer (or other non-conductive material) between the contacts. Then, secure the contacts and truck to the frame with a 4-40 nylon screw. Last, install a set of SBS Metal Wheel Sets in the truck and make sure they are isolated by checking for continuity between wheels with a multi-meter. Finally. A clean and easy way to power a decoder using track power in your freight and passenger cars. YEAH! No more batteries.