Item Detail Table of Content Wheel & Tire Service Equipment Tire Changers & Accessories Tire Changers & Accessories Large Bore Clamping Kit Item Number: HUN20-4018-1 * log in for dealer pricing. DescriptionLarge Bore Clamping Kit for TCX51C and TCX51M. Adds clamping capability for truck wheels with large center holes. Also adds clamping height for high offset and wide wheels.