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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*

Orders with Rural Delivery addresses may take longer than stated to arrive.


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

At Treetools, we prioritize your safety above all else, so we cannot accept returns on safety equipment. This policy ensures that your gear is always brand new, safe, and traceable to our trusted manufacturers and suppliers. We understand the critical role this equipment plays in your safety, potentially even preserving your life during climbs or work aloft. Therefore, we urge you to choose carefully before making your purchase. Additionally, please note that suitably trained and qualified individuals should use the climbing and rigging equipment listed on our website. We want to reassure you of our unwavering commitment to safety. Thank you for your understanding and commitment to safety.

Non-Returnable Items: Due to safety and hygiene reasons, PPE gear that has been opened, used, or worn cannot be returned. This includes, but is not limited to, helmets, lanyards, harnesses, friction cords and ropes.

Return Conditions for Unused Items: Return Conditions for Unused Items: Unused items in their original, unopened packaging with intact seals can be returned within 30 days of purchase with proof of purchase.

Defective Products: Items with manufacturer defects can be returned or exchanged within the warranty period, regardless of packaging status. Please contact customer service for return authorization and instructions.

Documentation Required: Proof of purchase and return authorization are required for all returns. Inspection Process: All returned items will undergo a rigorous inspection to ensure they meet return criteria. Items failing inspection will be returned to the customer.

Refund and Exchange Options: Refunds will be issued to the original payment method or as store credit. Exchanges are subject to availability.

Restocking Fee: 15% restocking fee for non-defective returns.

It is crucial that you select compatible gear for your specific configuration to ensure maximum safety. Failure to do so may result in severe consequences. We highly recommend that you choose the correct diameter rope that matches the hardware you are using. Please note that safety products cannot be returned due to configuration incompatibility. Therefore, we strongly advise you to conduct thorough research or ask us for clarification before making a purchase. Your safety is our top priority.

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