Ascenders & Descenders
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ISC Chest Ascender
The Chest Ascender is compact & lightweight and has been designed for use on a full body harness. Therefore it is ideal for use in Rope Access work.The cam is spring-loaded and fitted with a catch mechanism, allowing for ease one-handed operation of the device...
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ISC Singing Tree Rope Wrench
The ISC Rope Wrench is a device that allows DRT (double rope techniques) to be performed whilst using a single rope. This is achieved by creating a bend above the climber’s hitch, which with the addition of the stiff tether creates a ‘contained doubled rope system’ that travels throughout the...
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ISC APEX Rope WrenchThe first ISC Rope Wrench was launched in 2013, unlocking the potential of Stationary Rope Climbing and quickly establishing itself as the most popular SRT climbing system worldwide. The APEX builds on the performance characteristics of the original Rope Wrench by offering additional functionality and convenience, together...
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ISC D4 Work/Rescue Descender - 10.5 - 11.5mm rope
The D4 Work/Rescue Descender features a unique and innovative cam action, which offers precise control at slow or fast speeds. The progressive cam works by way of one cam operating inside another cam.The D4 has a...
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ISC D5 Work/Rescue DescenderThe D5TM is a double-stop device with an auto-lock function (which is activated whenever the operator lets go of the handle) and a panic brake which is not overly sensitive in normal use. The D5 Descender has a double safety locking mechanism, which means when loaded, the side plates...
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ISC Single Leg TetherThe RT270B1 Tether is fitted with a rubber grommet at the top attachment, which prevents excessive 'sit back' of the Rope Wrench. This means that the Rope Wrench can be correctly positioned for minimal friction during ascent, but will...
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Twin Leg TetherThe Twin Leg Tether has two attachement legs, which allow the tether to straddle a cranked hitch-minding pulley. The top attachment is fitted with a rubber grommet, which prevents excessive 'sit back' of the Rope Wrench, which means that the Rope Wrench can be correctly positioned for minimal friction during ascent,...
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ISC Squirrel Tether Kit with Phlotich-Squirrel PulleyThe Squirrel Tether is the ONLY metal tether for the ISC Rope Wrench, designed and manufactured exclusively by ISC in Wales,...
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ISC Squirrel FLEX Tether with Accessory KarabinerThe NEW ISC Squirrel FLEX Tether is designed to offer the optimal balance of rigidity and flexibility for SRT Climbing with the Rope Wrench and the ISC...
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ISC Chipmunk FLEX Twin Leg Tether,
with Accessory CarabinerIntroducing the Chipmunk, the new addition to our tether range. The Chipmunk FLEX measures 9" (22.86mm), which is 3" (7.62mm) shorter than the original Squirrel FLEX Tether. The short Chipmunk tether allows users to reduce the overall height of their SRT...
