80% Lower Drill Bits


  • Cobalt Drills with Aluminum specific geometry
  • Swiss length for greater stiffness and less walk
  • (1) trigger/hammer pin drill
  • (1) safety selector drill


This kit is to replace the trigger/hammer pin drill and the safety selector drill.  These drills are US made, Cobalt steel.  We selected Swiss length drills to keep them rigid when drilled from either side. This reduces the chance of breaking the drill or it walking.  The geometry is specifically for aluminum unlike others who merely sell general purpose jobber length drills.

Additional information

Weight 1 oz


There are no reviews yet.

Be the first to review “80% Lower Drill Bits”

Your email address will not be published. Required fields are marked *