6-5/8", Quick Ratcheting Clamp, Secures Workpiece For Precision Cutting, Sanding, Routing, Sanding, Or Just About Any Other Application, Ratcheting Mechanism Enables Easy Locking & Quick Release For More Efficient Workflow, Works Seamlessly With Holes & Channels Of MFT Table & Can Be Inserted Into Bottom T-Slot Of Guide Rails For Limitless Positioning, Clamping Capacity 6-5/8", 168 mm, THIS ITEM IS ONLY AVAILABLE TO FESTOOL DEALERS.