~ (DRILL BIT GUIDE) Wonder which drill bit to use when working on your model. This chart in PDF covers both American and Metric.
Drill-Bit-Guide

~ (IBEC) Gas Engines require power for the ignition.  IBEC or Ignition Battery Eliminators from Tech Aero Designs are a great product.

~ (FASTENERS) Need nuts, bolts, or screws?  Give RTL Fasteners a try.  They carry a wide assortment at great prices.