Hardened Ring Mandrels – Cast Mandrel Holder from Durston Tools. This is the Durston Tools Ring Mandrel Holder made of cast iron to provide a sturdy and robust base for mandrel work. It has two drill holes to bolt onto your bench, and it is designed to hold your ring mandrels securely while you work. The ring mandrel holder has three notches to hold the base of the ring mandrel and a supporting hole and cut out to support the tip of the ring mandrel.
This provides a stable base to work flat (through the hole) or in a raised position (using the cut out) to provide an angle to turn and work on the ring through 360. What is so useful about this tool is that it provides zero movement in the ring mandrel as you hammer or work the ring, enabling you to turn and work with no bounce back. It is designed to fit with all sizes of ring mandrels and can make a significant difference to your working conditions, providing increased security from slips or damage.