Enhance the precision of your DIY CNC machines with our specially designed linear guide stop. These shaft collars provide secure shaft fixation and accurate positioning, seamlessly integrating with shafts to deliver a reliable stopping point. Featuring a clamp-on design, the shaft collars allow for quick and easy installation while ensuring full engagement with the shaft. This promotes stability and alignment in various mechanical applications, saving time and improving assembly efficiency. Constructed from high-quality aluminum alloy, each shaft collar in this four-pack features an oxidized finish. Lightweight yet durable, these collars offer consistent performance in demanding environments. The integrated set screw mechanism enables firm clamping without damaging the shaft, helping to prevent slippage and maintain calibration under operational stress and vibration. Color: Silver Material: Aluminum alloy Type: SBR20 Package Contents: 4 x Linear Rail Stop Collars Note: The actual product may have slight color variations due to lighting and display differences, which do not affect functionality. Measurement tolerances may vary by +/- 1-3 cm.