The Wrench Extender Head Attachment, No. WE42A from VIM Tools is designed to be used with the HDR34 handle. This attachment allows users to put a wrench up to a 55mm into the wrench extender head allowing 48” of additional leverage to the wrench. The wrench extender features a much safer design than locking two wrenches together or using a pipe over the end of the wrench, according to VIM.