IRWIN 1890741 7/16" Flexible Installer Drill Bit Extension 3/16" Shank, 72" KD Tools Fits all SDS-plus and Hilti

Fits all SDS-plus and Hilti TE-C rotary hammers

These were purchased from Apex Tools

Strong Bit Tip Magnet Maximizes control when driving long screws

Prevents rounding of fasteners' corners

Powder-coated with silver hammer-effect enamel

IRWIN 1890741 7/16" Flexible Installer Drill Bit Extension 3/16" Shank, 72" KD Tools Fits all SDS-plus and HiltiThese are semi rigid with a slight flex to them. These are NOT bendable. IRWIN 1890741 7 16" Flexible Installer Drill Bit Extension 3 16" Shank, 72" Tungsten carbide tip for extended life in brick, block and mortar joints Show as "Type M" tip icon on packaging 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 Tapered flute for faster debris removal