#47 Heavy Duty Jobber Drill Bit

6-20 x 1 7/8 Phillips Drywall Self Drill Screw Zinc Plated (4000)

41/64 x 6 Reduced Shank Drill Bit (1/2 Shank)

7/8-9 x 10 Grade 8 Hex Cap Screw Yellow Zinc Plated

stucco and wood

#27 Heavy Duty Jobber Drill Bit (12) Finished Hex Nuts Silicon Bronze #47 Heavy Duty Jobber Drill#27 Heavy Duty Jobber Drill Bit . Web construction is heavier than general purpose construction making it particularly suitable for cotter pin hole drilling and cross hole drilling in head of bolts. The heavy construction affords efficient drilling in stainless steel and other hard materials. The split point reduces the thrust requirements and minimizes walking.