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Rhin-O -Tuff Onyx HD8000 and HD8370 added to OD4012 Punch Demo

Updated on Mar 08, 2026



 


Here is the audio transcript for this video.

Welcome to MyBinding video. Let's take a look at the Onyx HD8000 and 8370, two wire closers by Rhin-O-Tuff as they work in tandem with the OD4012 punch. Binding books and projects with wire is not only attractive but it's also very secure. If you already own Rhin-O-Tuff's Onyx OD4012 or any other vertical punch by Rhin-O-Tuff, the Onyx series has two wire closers that will make your job fast and easy -- the HD8000 and the HD8370. With efficiency in both productivity and space saving, both wire closers fit on top of your punch. After your project is all punched and your book is ordered the way you need to for wire binding, with the Onxy HD8000 firmly on top, simply slide your book all the way in the back of the throat and bring down the lever. The dual adjustment knobs on the top make things perfectly even; and your book is punched, bound and finished all within one seamless system. The same goes for the HD8370, but even better. The strength of this wire closer is not just its space efficiency but also it's a dual-function. With the wire in place and you load the book, one pull of the lever not only threads the wire on to the spine of the book but also closes it, making a one-step process in your binding with wire. Both wire closers and anything from the Rhin-O-Tuff Onyx series are backed by a solid three-year warranty. For more demos, reviews and how-tos, check out MyBinding.com.