This is an amazing hold down and anti-kickback device. Each set of Anti-KickBack Safety Rollers comes complete and ready to install on your fence or fixture. Yellow rollers rotate in a clockwise direction and will not rotate counter-clockwise preventing kickback on table saw and router tables. Green rollers rotate in either direction so they are great for shapers where they act as a hold-down, not an anti-kickback device. Rather than permanently mounting them to your machinery, the 24" track allows you to move them from one machine to another.
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