Bosch bell hanger bits are made for the professional electrician or low-voltage cable installer; Hole-in-flute design for fishing cable through drilled holes; Reduced slippage; Extra length for deep drilling
Speed helix design for three times faster drilling than standard bits; Last 50 PCT longer than high-speed steel; Easier drilling; Reduced heat and extended drill bit life; A split point that starts on contact with no walking or skating, eliminating the nee