FK-FF 12WERB FK FF 12 Shaft Support Set Fixed and Floating Supports for 12 mm CNC Ball Screw The WERB FK FF 12 shaft support set includes a fixed FK block and a floating FF block for 12 mm CNC ball screws, designed for miniature CNC machines and precision automation stages. Together they support the screw at both ends, helping to maintain smooth, low backlash motion on small format equipment across Pakistan. As the authorised WERB supplier, Abdul Traders