Bench Lock Clamp System, Anodized Aluminum Plate Mounts Flush With Work Surface, Clamp Automatically Adjusts To Match Material Thickness, 3" Reach 76 mm, Clamps Materials Up To 33/4" Thick 95 mm, Clamp Features An Adjustment Knob For Built-In Pressure Control, Includes 3" (76 mm) Bench Clamp, Clamp Plate & Mounting Hardware, THIS ITEM IS ONLY AVAILABLE TO KREG DEALERS.