IRWIN 1890949 1/2" x 36" Flexible Installer Drill Bit With High-Speed Steel Tip Gearwrench Black Phillips)

Black Phillips)

metal and plastic

Drop-shaped chip clearance slots aide drilling speed

Aeronca x 2 1428 12sa1

1" and 20mm arbor

IRWIN 1890949 1/2" x 36" Flexible Installer Drill Bit With High-Speed Steel Tip Gearwrench Black Phillips)These are semi rigid with a slight flex to them. These are NOT bendable. IRWIN 1890949 1 2" x 36" Flexible Installer Drill Bit With High Speed Steel Tip Unique combination of 135 Degree self centering split point stepped to 118 Degree hole enlarging body for fast, easy starts and smooth drilling 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