Recent discussion around the DMM Kinisi harness rope/webbing bridge has highlighted a broader issue in modern climbing systems: the distinction between certified and compatible hardware, and where responsibility lies when the two differ.
This is not about one harness or one manufacturer. It is about understanding certification, ..
One of the major benefits of having a rope bridge on a tree-climbing harness is that it allows climbers to add hardware to the bridge without much trouble. The ease and convenience of installation have led to several possible configurations, including the addition of swivels and pulleys.
The
As we close out the year, we thought it appropriate to see which Treetools brands were the winners for 2025. Notch, DMM Professional,
Climbing rope specs often look confusing. Two ropes can appear very different—40 kN vs 23 kN strength, 2% vs 1.2% elongation—yet feel nearly the same in the tree.
That’s because the most commonly published elongation figure, “elongation at 10% MBS,” is ..
Innovation in arboriculture seldom comes from a boardroom. It often starts with a problem, some scrap metal, and a climber frustrated by unreliable gear. The Notch Six Pack is a prime example—a lowering device that began on a workbench, outlined with six empty ..
Both the Petzl Basic and Petzl Croll S are compact rope-clamping devices, but their geometry and intended connection points make them behave differently when used in a ..
Like all thermoplastic safety helmets, the Protos Integral has a defined service life. That service life starts the day you put it to work—not ..
ART has issued two updates for the ART BlackBird mechanical device — one for the upper bearing pin on the friction enhancer and another for the fractured “nose” on the right side plate. Following further ..
Manufacturers—not universal regulations—determine the expiration dates for tree climbing harnesses. You should retire your harness according to the manufacturer's specified lifespan or the results of your inspection, whichever comes first. The DMM Kinisi harnesses are the most recent on the market, ..
Updated NOTCH Rope Runner Vertecs are now in stock at Treetools. While the changes may appear minor, they reflect NOTCH's commitment to feedback from the arborist community. When the original Rope Runner Vertec was introduced, it quickly established itself as one of the ..
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