Maximum: 3

1-8 x 2 1/4 Socket Cap Screw Alloy

fine threads and the self drilling tip make these screws ideal for penetrating and holding into metal framing studs and other types of metal or aluminum framing

5/8 x 6 Reduced Shank Drill Bit (3/8 Shank)

5/8-11 x 8 Grade 5 Hex Cap Screw Zinc Plated

15/16 x 6 Reduced Shank Drill Bit (1/2 Shank) 5/8-11 Hex Cap Screws 316 Stainless Steel Maximum: 315 16 x 6 Reduced Shank Drill Bit (1 2 Shank) . Expands the size range capacity of a 1 2 inch portable drill chuck. Common flute and overall length for minimal adjustment during tool changes. Precision ground for high degree of concentricity between shank and body diameter. Ideal for drilling in low and medium tensile strength materials.