Several head styles and anchor materials are available

They’ll also withstand excessive and repeated weight bearing

Tensile strength on diameters 1/4 to 2 1/2 inches is a minimum of 150

11/64 Heavy Duty Jobber Drill Bit

1/4 x 4 Powers Round Toggle Bolt Zinc Plated (50)

1/16 Heavy Duty Jobber Drill Bit (12) Flat Split Drive Anchors Zinc Plated - Clearance Several head styles and anchor1 16 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.