10mm Door Viewer Extension with 12mm Barrel in Polished Brass

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TradeLocks presents the 10mm Brass Door Viewer Extension, suitable for the 12mm Barrel to make a Door Viewer fit any door. There are a variety of doors available around the world, and not all are standard sizes, which makes this a great product a must for every locksmith.

Offering your customers a variety means not only presenting them with great door security hardware, but the necessary accessories to make them fit perfectly. The great 10mm Door Viewer Extension is suitable for 12mm Barrel Door Viewers and provides up to 10mm added length to fit thicker doors. By increasing the overall length of the door viewer you can easily fit it into a variety of different door thicknesses.

In order to determine what size extension will be necessary, measure the thickness of the door, frame or wall where the door viewer will be fitted. If up to 10mm are needed for the door viewer to fit snugly, then this product is exactly what you are looking for.

Also available are several other length options so as to help you fit door viewers for even thicker spaces:

- Up to 20mm length added: see the 20mm Door Viewer Extension
- From 20mm to 55mm length added: see the 55mm Door Viewer Extension

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Please Note: In the case that you will be using the door viewer through a door knocker, do not forget to add 10mm to the overall length required for the viewer.