duMONT Minute Man® designs and manufactures Special Application Bushings to guide and support the Broach as it passes through the workpiece, enabling the operator to use individual Keyway Broaches in a variety of bore sizes. Special Bushings, plain or collared, are available in both American Standard and Metric Sizes. Each Bushing is designed to accommodate the bore size you need, has the proper slot size for the Broach you are using and can be manufactured in long lengths to work with Broaches specifically designed with long lengths of cut. Special Bushing designs are also available that allow for indexing of multiple keyways, and can accommodate multiple Broach Styles. Please contact factory for details.