ISC APEX Rope Wrench

SRT Climbing Made Effortless

The ISC APEX Rope Wrench is a high-performance friction device designed specifically for Single Rope Technique (SRT) climbing. Built by ISC for professional arborists, the APEX delivers smooth, controlled ascent and descent on a single rope — making it an essential tool for modern tree surgery.

Key Features

• Designed for SRT climbing — efficient and smooth on a single rope
• Adjustable tether attachment for fine-tuning friction to suit your rope and style
• Robust aluminium and steel construction for long-term professional use
• Compatible with a wide range of rope diameters
• Made by ISC, a leading manufacturer of professional arborist equipment

Why Use a Rope Wrench?

A rope wrench transforms a standard hitch-based SRT system into a smooth, efficient climbing setup. The APEX reduces the effort required to ascend and gives you precise control on the way down — saving energy for the work that matters.

Technical Information

Rope diameter range (mm)11-13 (7/16 - 1/2") with four friction settings
(WLL) Working Load Limit (kg)120
(WLL) Working Load Limit (lbs)264
Serial numberingAs standard
Body finishAnodised
Weight (grams)177
Weight (ounces)6.2