2pcs Clamp Blocks, 8 Adjustment, Workholding Spacer for Vise & Hold Down Clamps, Expand CNC Clamping Range

8-Step Precision Adjustment Quickly match different workpiece sizes while maintaining stable and accurate clamping. Universal Compatibility Compatible with most CNC clamp kits, step clamps, vise clamps, and hold-down clamps. Better Stability Delivering balanced pressure, improved grip, and more reliable machining results..