DRILLCO Series 500A 132 is a size 1/2 heavy duty, fractional drill bit in cobalt with a straight shank, an overall length of 6 inches and a flute length of 4-1/2 inches.
- 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.
6 bits per pack.