Lockjack Sport w/ Swivel

The Lockjack can totally replace the friction hitches used on climbing lines. The Lockjack works as both an ascender and as a descender for self-belay in the doubled rope technique (DdRT). The advantage of the Lockjack is that friction is applied to the rope with a smooth aluminum surface which causes less friction while climbing for an effortless advance, and a smoother more easily controlled descent.

While climbing, the Lockjack tends slack by itself as the weight of rope below the climber pulls the line through the device. Works with 7/16" or 1/2" rope with a simple part change of the clutch (both clutch sizes are included.) Use with a small D or Oval carabiner only. A larger carabiner may allow the wooden ball to pass through and become stuck, resulting in free fall.

Features & Benefits

• Smooth friction
• Precision control
• Ascend in DdRT
• Descend in DdRT
• Easy advancement

Specifications

• Manufacturer: ART
• Made in : Germany
• Minimum Rope Size: 11mm (7/16")
• Maximum Rope Size: 13mm (1/2")
• Weighs: 292 g (9.6 oz)

Certifications

• CE
• EN 358