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SMC Descending Rings are a one-piece aluminum ring which are intended to be placed at the top of a pull down rappel in place of a carabiner in order to facilitate recovery of ropes. Low cost means you don't have to think twice if the situation requires leaving the D-Ring behind. In addition, descending rings are often used creatively in various rescue rigging applications and are important components in the manufacture of many different types of climbing and rescue harnesses.

SMC Descending Rings are manufactured in a 12 step process in order to insure consistent quality, durability and maximum reliability.

SMC Aluminum Descending Ring

PT#: SM81600

SMC Aluminum Descending Ring

:: Specifications

  • Dimensions: OD 2 in. - ID 1.5 in. - 0.3 in. THICK
  • Weight: 0.4 oz (11.3 g)
  • Material: Aluminum
  • Finish: Natural
  • 3 Sigma MBS: 3,147 lbf (14N)

:: Features

  • Single-piece (non-welded) construction using aluminum provides maximum reliability and strength-to-weight
  • Twelve individual steps are required to make each D-ring:
    • 1. Blank & form sheet aluminum
    • 2. Anneal
    • 3. Form inside of ring
    • 4. Coin
    • 5. Wash
    • 6. Heat-treat
    • 7. Trim ID
    • 8. Trim OD
    • 9. De-burr
    • 10. Bake
    • 11. Strength testing
    • 12. Final Q/C inspection

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