5/16 x 18 Irwin Straight Shank Installer Bit For Masonry

 Irwin Installer Bit for Masonry

Irwin 5/16" x 18" Installer Bit for Masonry

Straight Shank Installer Bits Features:

• 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*
• Tungsten carbide tip for extended life in brick, block and mortar joints