Another New Tool from Eagle Tool US. The Quick Switch adaptor kit contains a Quick Switch extension head that can be attached to any length 3/16 in. Switch Bit Shank to create Cable extensions. When assembled with a Switch Bit Shank it can be used as an extension for any standard Cable or Switch Bit. The kit also contains a 1/4 in. Quick Switch Hex adapter which can be used with a Switch Bit to create a Quick Change bit or connect it to the Quick Switch extension piece to adapt any Standard Cable or Switch Bit to a Quick Change chuck system.