Knitting machine crank adapter designed for Addi brand machines 22 and 46 needle only. You will receive a random "rainbow" colored adapter. *Will not work for Sentro machines. Please check my store for the Sentro adapters! Each adapter comes with a 1/4" hex bit that will fit any screwdriver. These adapters are only recommended for use with 4V screwdrivers. There is no need for any additional tools or parts, everything is included in each order. These adapters have been personally designed and crafted using a 3D printer. Each item is made in the USA. Patent pending. *To keep my shipping times quick, I do not list anything that is not ready to mail to you. *Please keep checking back if I'm sold out. This style of adapter fits on all of the following machines: Addi Express 22 needle Addi King 46 needle WARNING: - Using an adapter can cause increased wear on your knitting machine and is not recommended by manufacturers. - To prevent damage to the adapter and your machine, do not use power drills or any screwdriver that exceeds 4V. - Proper maintenance and cleaning of your machine is required to extend the life of your equipment. - Drunk Hooker is not responsible for any misuse or damage the adapter may cause. - The pre-installed hex bits are NOT permanently installed. These can come loose over time. This is not a quality issue. You can always reapply adhesive (we recommend JB Weld) as needed. *Screwdriver is not included. You are only purchasing the adapter with a preinstalled hex bit.