Irwin 1890708 Installer Bit, 5/16 in Dia, 18 in OAL, Spiral Flute, 1-Flute, 0.285 in Dia Shank, Cylinder Shank

Constructed from premium alloy steel with 82 deg point for fast boring, 18 in length and wire hole at the tip of the bit makes it easy to pull wire through in applications such as walls, ceilings and floors in a variety of materials for installation of small wire for telephones, cable, TV, computers and security systems.

• Hole in flute for easy wire pulling through walls, ceilings and floors
• Hole in flute for easy wire pulling through walls, ceilings and floors
• 3-flatted shank prevents slipping in drill chuck and includes hole for wire pulling