1/4 x 1 3/4 Tie Wire Split Drive Anchor Zinc Plated (100)

7/32 Cobalt Heavy Duty Jobber Drill Bit

as the anchor remains in place and allows you to use it repeatedly

45/64 x 6 Reduced Shank Drill Bit (1/2 Shank)

stucco and wood

17/64 Cobalt Heavy Duty Jobber Drill Bit (12) 1-14 Grade 5 Hex Cap Screws Zinc Plated 1/4 x 1 3/4 Tie17 64 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.