Easy Grip Knobs have the same features as the Post knobs , but with the added grip for when you need more torque, Easy Grip Knobs are great for jig & fixtures where the common knob isn't easy to get to.Easy Grip Knobs allow you easy access for tightening and loosening bolts without trying to reach into a hole or where bolts are up against an edge making it virtually impossible to get to. Great for use on secure router table fences and bandsaw fences. Knobs are made with durable plastic with steel thread insert for long life.