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Ring Expander Step Metal Mandrel 17 to 24 mm with Internal Rod Silver Jewellery Tool for Enlarging and Reshaping Ring

Ring Expander Step Metal Mandrel 17 to 24 mm with Internal Rod Silver Jewellery Tool for Enlarging and Reshaping Ring

Metal expander with 7 steps from 17 to 24 mm. Place the ring on the step, tap the rod and the mandrel expands, enlarging or reshaping the band. Full description
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€43.62
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Overview
Ring Expander Step Metal Mandrel 17 to 24 mm with Internal Rod Silver Jewellery Tool for Enlarging and Reshaping Ring

The step ring expander is a practical jewellery tool for home workshops and small jewellery repairs. It is used for gently enlarging the band and reshaping a ring that has become deformed or flattened over time. The mandrel is made of metal and has a shiny silver finish with a knurled base that provides a good grip in hand and stability on the workbench. The body of the mandrel features seven steps with diameters ranging from 17 to 24 mm, allowing you to always place the ring on the step that corresponds to its current size. The tool is designed for rings with an internal diameter of 17 mm or more.

The principle of operation is simple and requires no prior experience. The mandrel is divided into segments along its length and has a conical cavity inside for the internal rod. You slide the ring onto the chosen step, insert the rod from above, and lightly tap it with a hammer. The rod gradually pushes in, the segments of the mandrel open up, and apply even pressure to the inner wall of the band all around its circumference. This allows the ring to enlarge smoothly while maintaining its round shape. After tapping, you can push the rod out through the bottom opening using a screw or a metal stick that you prepare yourself.

  • Type – step ring expander with internal rod
  • Material – metal
  • Surface – shiny silver with knurled base
  • Mandrel Steps – 17 mm, 18 mm, 19 mm, 20 mm, 21 mm, 23 mm, and 24 mm
  • Usage – rings with an internal diameter of 17 mm or more
  • Operation – tapping the internal rod with a hammer
  • Rod Ejection – through the bottom opening using your own screw or metal stick
  • Suitable for – enlarging the band and reshaping a deformed ring
  • Package Contents – ring expander with step mandrel and internal rod

When working, proceed slowly and carefully. Place the ring on the step where it fits snugly, and tap the rod lightly and repeatedly. Between taps, check the size of the band to avoid over-expansion. If you need to enlarge the ring by more than one size, gradually move it to a higher step. It is advisable to use a hammer with a rubber or plastic head for tapping the rod. After use, wipe the mandrel with a dry cloth and store it in a dry place.

The expander with step diameters of 17 to 24 mm is suitable for anyone who wants to adjust the size of a ring themselves or restore the original round shape of the band. It will be appreciated by DIY enthusiasts, costume jewellery makers, and novice jewellers who need simple and compact tools for their workshop. With seven steps, you can fit the ring exactly according to its size, and the expansion occurs evenly around the entire circumference. The metal construction with the knurled base ensures a firm grip and stability during tapping. The tool takes up little space in the workshop and is ready for any further ring adjustments.

Price incl. VAT €43.62