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Black Diamond
Magnetron GridLock

In Stock Platinum
EAN:793661164838
£27.00BUY NOW

Order now and get it Tuesday 23rd by choosing Next Day Delivery
Glossary - 3 sigma close

Three sigma (or 3σ) is a statistical rule that states that for a data set with a normal distribution (with most of the values close to the average and very few being at the extremes) nearly all values will lie within 3 standard deviations of the mean. In effect this says that by performing this statistical function you can account for 99.73% of all values.

It is impossible to test climbing equipment destined for shops to destruction, for obvious reasons. Traditionally most climbing manufacturers used a fairly arbitrary system of: testing a few from every batch, taking the average, knocking 10% off. If that was higher than the expected strength, the batch was ok. With three sigma testing you can extrapolate from just a few results that 99.73% of a batch will fall between two known values, with the other 0.27% at the extremes.

This then means that 99.865% of a batch is equal to or higher than a known value. In most cases climbing equipment exceeds the stated strength anyway, making the statistical chance of one product out of a tested batch failing below the stated strength negligible. DMM were the first climbing company to implement three sigma testing, but Wild Country and Black Diamond have now followed suit.

Glossary - Hot forged close

Hot forging is a method used to form stock metal into complex shapes. For many years aluminium alloys have been the material of choice for climbing equipment as they are lighter and much easier to manipulate than comparable steels. For decades karabiners and many other products were made using a technique called cold forging, which isn't possible with steel. This essentially involves squashing 'cold' (room temperature) pieces of stock aluminium alloy with a mould, known as a die, under very large pressures until it takes the form of the mould.

Recently manufacturers have started to move towards hot forging which involves heating the alloy in a furnace before forging it. This makes it much more malleable and allows substantially more complex and subtle shapes to be moulded under higher pressures. Both of these techniques are known as drop forging, when huge a huge hammer is 'dropped' onto the material to create the pressure.

The major benefit for the end user is that equipment can be formed using the bare minimum amount of metal required, rather than using more primitive shapes, making it lighter (and in some cases stronger aswell). It also makes the application of heat treatments after the forging much easier to control, increasing consistency and, by extension, safety.

Glossary - Magnetron close

Magnetron Technology uses two magnetic arms in the gate and a steel insert in the carabiner's keylock nose to create an ultra-secure, self-clearing and redundant locking mechanism that can be easily used with either hand.

Amazingly it adds virtually no weight to existing screwgate karabiner designs. This new way of closing karabiners was developed by Black Diamond and remains a proprietary technology.

  • Magnetic attraction to a steel insert in the carabiner nose keeps two independent arms securely locked
  • Locking arms must be individually depressed before the gate can be opened
  • Once open, opposing magnetic fields repel the arms to ensure smooth and reliable gate operation
  • Symmetrical design allows for easy one-handed operation (right or left)

Combining maximum security and ease of use like never before, the Black Diamond Magnetron GridLock uses the power of magnets to reinvent the auto-locking carabiner. Incredibly quick, easy and intuitive to use the new autolocking Magnetron gate adds just 2g to the existing GridLock karabiner which won a host of awards and praise when it was released.

With the use of an extra tail on the gate and an inward curve on the back bar, the GridLock can hold your harness' belay loop (or anything else for that matter) captive preventing the dangerous possibility of loading across the gate. Lighter than anything else remotely similar to it, this may well be the ultimate belay karabiner.

  • Hot forged construction
  • Innovative gate design uses two magnetic arms in the gate and a steel insert in the nose for super-secure, interference-free closure
  • Keylock nose prevents snagging
  • One-hand operable
  • Unique shape isolates belay loop to eliminate cross-loading
  • I-Beam spine transitions into a rounded, large rope-bearing surface
  • Individually proof loaded to 50% of rated strength
  • 3 sigma tested

National Geographic Gear of the Year 2012Outside Magazine Gear of the Show OR 2011Gear Junkie Best in Show Outdoor Retailer Summer 2011

iF Product Design Award 2012 GoldPlus X AwardRed Dot Design Award Honorable Mention 2012

Please note all Magnetron GridLocks are Platinum in colour but are supplied with either: purple, green, orange or blue locking arms. Add a note in the Customer Notes section as you check-out if you have a preference.

Compare HMS Karabiners

Brand Model Weight Clean
Nose
Captive
End
Gate Closed
Strength
Gate Open
Strength
Cross Gate
Strength
Gate
Opening
Wild Country Helios 50g 25 kN 7 kN 7 kN 19mm
Black Diamond VaporLock 52g 21 kN 8 kN 7 kN 20mm
DMM Sentinel 54g 24 kN 8 kN 10 kN 20mm
Petzl Attache 3D 55g 22 kN 6 kN 7 kN 22mm
Petzl Attache 2014 56g 22 kN 6 kN 7 kN 24mm
Edelrid HMS Strike Safelock 66g 22 kN 8 kN 7 kN 21mm
Edelrid HMS Strike FG 70g 22 kN 8 kN 7 kN  
DMM Rhino 72g 27 kN 7 kN 9 kN 20mm
Black Diamond Airlock 75g 23 kN 7 kN 7 kN 22mm
Black Diamond GridLock 76g 22 kN 8 kN 7 kN 21mm
Wild Country Helix 76g 28 kN 8 kN 8 kN 24mm
Black Diamond Magnetron GridLock 78g 22 kN 8 kN 7 kN 21mm
Grivel Omega Twin Gate 79g 25 kN 9 kN 10 kN 29mm
Petzl Attache 80g 23 kN 6 kN 7 kN 20mm
DMM Boa 83g 25 kN 8 kN 10 kN 25mm
DMM Aero HMS 85g 25 kN 8 kN 10 kN 19mm
Black Diamond Magnetron RockLock 87g 24 kN 7 kN 7 kN 21mm
Wild Country Synergy HMS 92g 22 kN 7 kN 7 kN 25mm
DMM Belay Master 2 93g 25 kN 8 kN 10 kN 20mm
Black Diamond

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