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 The Micro Stopper 6 is technically retired but it's still sold online.The Micro Stopper 6 is no longer produced by Black Diamond. We're showing it as "available" on WeighMyRack because you can still find it at trustworthy online retailers.

Black Diamond Micro Stopper 6
  • Black Diamond Micro Stopper 6
  • Black Diamond Micro Stopper 6

Micro Stopper 6


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Versatile thin crack pro, trapezoidal Black Diamond Micro Stoppers feature a subtle curve on their longest face for maintaining utility in near-parallel cracks while still catching on crystals and irregularities. Each Micro Stopper is equipped with a durable, galvanized steel cable.

• Copper/iron mix in heads provides bite in thin placements
• Patented swage is stronger, more flexible and less prone to fraying

Retail price

US$ 17.95

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Weight (grams / ounces) 21 g / 0.74 oz
Size 6 micro nut (full strength)
Colors as a Nut Set Single
Strength (kilonewtons) 8 kN
Color Black
Offset No offset
Range (inches / millimeters) 0.35 in - 0.41 in
8.80 mm - 10.40 mm
Material(s) ­Wire Material: Galvanized Steel
Certification CE, UIAA

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Outdoor Gear Lab Gear Review rating 4/5

These are suitable for aid climbing but a better choice for free climbers who want to have a couple micro nuts on their rack at all times. When paired with the DMM Brass Offsets, you will have a nut for just about every crack type.

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The UIAA equipment standard provides a baseline for equipment performance in a test lab under controlled conditions on new equipment. Although these test conditions are relevant to the conditions encountered climbing, conditions encountered at the crags and the condition of the equipment are equally important. This recommendation from the UIAA member federation The British Mountaineering Council (BMC) provides vital equipment information that is NOT explicitly addressed in the standard, particularly failure modes of the equipment and recommendations for the use, inspection, maintenance, and retirement of equipment.