Irwin Straight Shank Zinc Carbide Tipped Rotary Drill Bit 1/2 x 4 L in. Size:1/2" x 4" filters & accessories that make

filters & accessories that make our vacuums a versatile tool for any task

30 feeding holes

Smooth Face

With 3 nuts

General purpose metal

Irwin Straight Shank Zinc Carbide Tipped Rotary Drill Bit 1/2 x 4 L in. Size:1/2" x 4" filters & accessories that make2X longer life than traditional masonry bits Maximized flute for faster, more efficient dust removal 2X more carbide in tip for 2X longer drilling life in rebar reinforced concrete Optimal groove design minimizes friction for increased speed and longer life Blue power ring for easier identification in the toolbox Premium steel improves core strength for maximum durability and extended life