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ISC Rope Wrench ZK2

ISC Rope Wrench ZK2

ISC Rope Wrench ZK2



The ZK2 Singing Tree Rope Wrench is a unique friction control device designed to work in conjunction with a suitable friction hitch to allow aerial arborists to ascend, descend and work position on a 'single line'. Without the Singing Tree Rope Wrench the friction hitch would bind up on a single rope and not function efficiently. By attaching the Singing Tree Rope Wrench to your system with a stiff tether the device works by applying leverage to force the climbing line into an S-bend above the hitch - the kink in the rope provides additional friction during descent to ensure the knot behaves correctly. You should have a strong working knowledge of Single Line Work Positioning before you attempt to use the Rope Wrench - this means you should have received qualified training! Do not climb above your anchor point!

Minimum Qty

1 Items

Order Ships in

1 Bus Days


In Stock

Product Code: 108-08001002

All prices include GST
  • Robust aluminum construction; lighter and smaller than the original version
  • Machined edges and curves are rope friendly and user friendly
  • Includes mid-line attachment "Slic" pin
  • The bottom friction pin features a roller sheave for smoother ascent and descent
  • The upper friction pin includes a larger diameter "slic" pin, providing more consistent friction and being more rope friendly
  • The stiff tether (sold separately) forces the Rope Wrench to quickly engage or disengage, optimizing your climbing experience
  • Best suited for 10mm diameter friction cord approximately 80cm eye-to-eye
  • Designed by Kevin Bingham and made in Wales by ISC
Rope Ø 11 - 13 mm
Construction Aluminum
Weight 127 g
Width 38 mm
Length 102 mm
Height 51 mm

Under $250  
Auckland $6.90
North Island $9.90
South Island $12.90
Orders Over $250 FREE*


Due to factors out of our control, Treetools is experiencing random shipping delays and supply issues that may result in some gear not being available either in-store and/or online. We apologise for any inconvenience this may cause.

*Free Shipping excludes ladders and overweight product.

NO INTERNATIONAL SHIPPING Treetools is a 'kiwi only' affair.
Find out more about Treetools Shipping and Return Policy here.
All parcels require a signature on delivery unless requested otherwise.

Accurately tracking the life of a product is paramount for your safety

Due to the critical nature of gear stocked by Treetools, we cannot accept returns on safety equipment, so please choose carefully. Treetools cannot accept returns or exchanges on safety equipment because we need to ensure the gear you purchase is brand new, in a safe condition, and traceable directly back to manufacturers and suppliers. Please understand this equipment plays a critical role in your safety, potentially preserving your life when you climb or work aloft. Climbing and rigging equipment listed on these pages should only be used by suitably trained and qualified individuals.

What counts as work at height safety equipment?
  • Ascenders
  • Carabiners
  • Climbing Kits
  • Climbing Lines
  • Climbing spurs
  • Connectors
  • Descenders
  • Friction Cords
  • Friction Savers
  • Harnesses
  • Helmets
  • Lanyards
  • Pulleys
  • Rope Tools
  • Slings
  • Swivels

Please ensure you select compatible gear for your specific configuration. For example, the correct diameter rope for the hardware your are running. Safety products cannot be returned due to configuration incompatiability - do your research, or ask us if you are not sure.

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