Brand
ISC
ISC is a Welsh maker of climbing and rigging hardware for arborists and rope access. The ISC Rope Wrench helped make stationary rope climbing popular in tree care.
- ISC Rope Wrench
- Climbing pulleys
- Rigging blocks
- Rope access hardware
ISC
ISC Small Rigging Pulley for up to 5/8" Rope
A compact ISC pulley for light rigging and redirects on lines up to 5/8 in.
ISC
ISC Nessie Lanyard Management Clip
A small saddle clip that keeps a flipline stowed and out of the way.
ISC
ISC Aluminum HMS Carabiner
A wide pear-shaped aluminum connector for hitches, anchors and lanyards.
ISC
ISC Aluminum Oval Triple-Locking Carabiner
A symmetrical aluminum oval with a triple-action gate for pulleys and devices.
ISC
ISC Compact Oval Supersafe Carabiner
A compact oval with ISC's Supersafe auto-locking gate for tight hitch systems.
ISC
ISC Ultrasafe Hand Ascender with Safety Pin
A hand ascender with a safety pin to help prevent accidental rope release.
ISC
ISC Offset Oval Carabiner
Auto-locking offset oval that centers devices and favors the spine.
ISC
ISC Gator Bent Gate Carabiner
Non-locking bent gate carabiner for fast clips and gear racking.
ISC
ISC Iron Wizard Screwgate Carabiner
Steel screwgate carabiner for wear-prone rigging and anchors.
ISC
ISC Double Action Swivel Snap Hook
Self-locking snap hook with a swivel eye to stop lanyard twist.
ISC
ISC Steel Rings
Hard-wearing steel rings for savers, anchors and rigging where rope runs often.
ISC
ISC Chipmunk Flex Tether
A replacement flexible tether for the ISC Chipmunk in SRS setups.
ISC
ISC Rigging Block for 5/8 in Rope (Blue/Orange)
A mid-size ISC rigging block for 5/8 in rope on everyday removals.
ISC
ISC Small Rigging Pulley for 5/8 in Rope (Red/Orange)
A compact ISC rigging pulley for 5/8 in rope.
ISC
ISC Large Rigging Pulley for Rope up to 25 mm
ISC's large rigging pulley for heavy rope up to 25 mm on big removals.
ISC
ISC Medium Rigging Pulley for Rope up to 20 mm, 150 kN
A 150 kN ISC rigging pulley for rope up to 20 mm.
ISC
ISC Small Rigging Pulley for 1/2 Inch Rope
A compact ISC rigging pulley for 1/2 in rope and light lowering.
ISC
ISC 1/2 in. Rigging Block with Sling
An ISC rigging block for 1/2 inch line, with a sling to hang it.
ISC
ISC 5/8 in. Aluminum Rigging Block with 5/8 in. Dead-Eye Sling
A light aluminum rigging block for 5/8 inch line with a matching dead-eye sling.
ISC
ISC Offset Oval Quadlock Carabiner with Captive Pin
A four-action auto-locking offset oval with a captive pin to hold it in place.
ISC
ISC Apex Rope Wrench
A rope wrench for SRS climbers who want a hitch that tends and descends smoothly.
ISC
ISC 1/2 in Rigging Block with Loopie Sling
An ISC rigging block for 1/2 in rope, paired with an adjustable loopie sling.
ISC
ISC Large Rigging Pulley (Yellow with Green Wheel)
A large ISC rigging pulley for redirecting lowering lines on removals.
ISC
ISC Oval Accessory Carabiner
Light oval clip for racking tools and spare hardware on your saddle.
ISC
ISC Compact Rigging Pulley (Green, Grey Wheel)
Small, light rigging pulley for redirects, speed lines and lighter lowering.
ISC
ISC Offset Oval Quadlock Carabiner
Offset oval with a four-action gate for connections that must stay shut.
ISC
ISC Twister Swivel Eye Carabiner
Auto-locking carabiner with a built-in swivel eye to keep lines from twisting.
ISC
ISC Big Dan Steel Carabiner with Triple-Action Gate
Large steel carabiner with a wide opening and triple-action locking gate.
ISC
ISC Steel Offset Oval Carabiner
A durable steel offset oval auto-locker for hard-wearing climbing and rigging setups.
ISC
LockJack Sport Replacement Parts
Factory replacement parts for keeping a LockJack Sport in service.
ISC
ISC Offset D Supersafe Carabiner with Locking Pin
An offset D auto-locking carabiner with a locking pin for tree climbing.
ISC
ISC Offset D Supersafe Carabiner
An offset D auto-locker from ISC for strong, tidy connections on your saddle.
ISC
ISC Aluminum Oval Carabiner
A light, symmetric locking oval for pulleys, devices and racking gear.
ISC
ISC Iron Wizard Supersafe Carabiner
A durable ISC auto-locker for high-wear spots on your climbing system.
ISC
ISC Triple Action Snaphook
A steel triple-locking snap hook for lanyards and arborist climbing systems.
ISC
ISC Triple Action Swivel Snaphook
Triple-locking steel snap with a swivel eye to keep lanyards from twisting.
ISC
ISC Compact Rigging Pulley (Grey with Grey Wheel)
A small ISC rigging pulley for pruning and light removal rigging.
ISC
ISC Medium Rigging Pulley for 20mm Rope (Grey with Green Wheel)
A mid-size ISC rigging block for heavier removals with rope up to 20mm.
ISC
ISC Rigging Rope Wrench (70kg)
A friction device for lowering light limbs and brush in the canopy.
About ISC
ISC builds pulleys, rigging blocks, rope grabs and connectors used by tree workers around the world. Its Rope Wrench pairs with a friction hitch to make single rope climbing in trees practical, and it remains a common first SRS device.
On the rigging side, ISC blocks and pulleys are used for lowering and redirecting loads. Size every piece of rigging hardware for the forces involved, follow the instructions, and train with a qualified person before using any new climbing system at height.