DRILLCO Series 500A 105 is a size 5/64 heavy duty fractional drill bit in cobalt with a straight shank, an overall length of 2 inches and a flute length of 1 inch.
- Heavy duty construction made to Type J aircraft specifications.
- Used for drilling holes in hard tough materials such as stainless steel titanium high temperature and high strength alloys.
- High red hardness of cobalt permits speeds 30% greater than HSS drills.
12 bits per pack.