Self-centering ID Clamps from Carr Lane Manufacturing simultaneously locate and clamp from the inside of an existing hole or slot in the part, leaving the entire outer surface clear for machining. Tightening the tapered center screw with a hex wrench pushes the clamping segments outward to securely hold the internal bore.

Made in the USA and available in seven sizes, the ID Clamps allow access to five sides without any clamp interference for multiple-part machining on vertical and horizontal machining centers.