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COVID-19 Update 5 January 2021: Online sales are OPEN, with orders being dispatched within two working days.
Current U.K. transit delays: five to seven working days for orders under £75.00 in value sent by post, and two to three working days for orders over £75.00 sent by DPD/Parcelforce. Machines are being dispatched within five working days.
Our trade counter remains closed to visitors for the time being.

Expanding Mandrels

Expanding Mandrels are used to hold a workpiece on it's bore enabling the outside to be turned. Working in a similar way to a split collet (only the other way round!), a split sleeve is mounted in the bore of the workpiece and expanded to grip the bore via an internal taper. Since the sleeve is split from both ends it expands equally along it's length when tightened onto the tapered pin.

Note: These products are not designed for use in the jewellery industry.