Drill Bits and Countersinks
FSC 5133: Drill Bits and Countersinks
Federal Supply Class (FSC) 5133 covers drill bits and countersinks. These NSN items are consumable cutting tools for hole-making.
Drill bits and countersinks create and finish holes in metal, wood, and other materials. They are essential consumables for fabrication and repair.
Common items include twist drills, countersinks, and counterbores. Tools are made from high-speed steel and carbide for edge life.