Irwin - Speedbor 1/2 in. X 4 in. L Carbon Steel Wood Boring Bit Quick-Change Hex Shank 1 pc

These short length flat bits drill through double studs. They allow for access in tight areas, and can drill a straight hole in tight areas. All bits have 1/4 In. hex shank, and are 4 In. long. This specialized drill bit is designed to provide precise and efficient boring in wood, especially in tight or hard-to-reach spaces.