5/16 x 12 High Speed Aircraft Bit

9/16-18 x 3 1/2 Hex Cap Screw SS 316 (A4)

1 1/4 x 6 Reduced Shank Drill Bit (1/2 Shank)

1/4 x 2 Mushroom Spike Zinc Plated (100)

1-12 x 2 1/4 Socket Cap Screw Alloy

19/32 x 6 Reduced Shank Drill Bit Cobalt (1/2 Shank) Shopify Collective 5/16 x 12 High Speed19 32 x 6 Reduced Shank Drill Bit Cobalt (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.