Ever need to drill just a bit deeper? Or the hole you need to drill is so recessed you can't get to it, and still be able to drill the hole? A Bit Extension will do the trick! With many designs to chose from Tool King has an Extension to fit your needs. We also have Bit Holder Extensions design to turn fasteners in those hard to reach places as well. Tool King stocks a great selection of Bit Extensions. Tool king has a great selection of Bit Extensions, all at guaranteed low prices from the leading manufacturers on the market.