The Rail Free is an extendable frame base for the portable CNC cutting machines manufactured by SteelTailor. The machine's cutting length measures from 2m to 16m, which eliminates the need for consumers to return to have their machines extended. The tool's resellers cannot order stocks due to the machine's large sizes; orders may only be placed after confirming a particular need. These SteelTailor rails enables the users to extend the effective by every 2m or 1m.