The high strength

there is no secondary tightening operation required which greatly reduces the overall cost of an anchor installation

Sizes range from 1/8" x 2" to 1/2" x 6" with combo round

9/32 Heavy Duty Jobber Drill Bit

5/16 Cobalt Heavy Duty Jobber Drill Bit (6) 1-8 Hex Cap Screws 18-8 Stainless Steel The high strength5 16 Cobalt Heavy Duty Jobber Drill Bit . 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 standard heavy duty split point (HSS) drills.