This is my collection of individual fluted drill bits for refining shock piston oil orifices on your cars. If you want starter kits of with more drills in one package, search for 'TrackTune'. The 0.90mm - 1.40mm drills are good for a variety of 1/10th scale oval and offroad cars. If you desire drill sizes for 1/8 scale cars, please give me the sizes you would like and I will stock them. Modify your exiting pistons or use the blank Custom Works Delrin pistons P/N CW-1880 or P/N CW-1875. These are precision drills made of carbide. They are very sharp and hard, and do not like abuse! Be gentle as you drill. The drills have an 1/8" (3.175mm) shank. Use a collet holder for best results (click HERE for my high precision holder).
