Designed specifically for pocket hole joinery, the broad clamp faces and deep throat on the Premium Kreg Face Clamp enable you to clamp directly over the joint line, ensuring a perfectly flush seam. Without a face clamp, the pocket screw can follow the grain of the wood, resulting in misalignment. The vise-grip style clamp action makes it easy to engage and disengage the Kreg clamp with one hand. Its generous 3-1/4" throat depth makes it a true deep throat clamp, capable of reaching across most face frame stiles. Technical Details:The premium Kreg clamp features soft-grip handles for more comfortable operation.3-1/4" deep throat clamps wide rails and stiles easily. Vise-grip style clamp action-squeeze to engage, trip to the lever to release. Adjustment knob dials out to handle stock up to 2-3/4" thick.