Stats| Weight | 90 g | | Wiregate | No | | Gate Opening (mm) | 24 | | Major Axis (kN) | 25 |
| Petzl William 4.6 out of 5 based on 34 user reviews.
 Cred: 951 | | Great Carabiner, really big and huge opening at the gate. It has a really strong spring in the gate so it has a nice snap close. |
| Just like all Petzl equipment, you get what you pay for. I feel like its a little over priced, but with Petzl gear you are getting the top of the line. |
| Check out the HMS Compact from CAMP USA. Similar biner but a little cheaper and a lot lighter! |
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 Cred: 225 | | Review by jlw670 on Nov. 20, 2008 | | Great biners! They're really big and fun to use. Novice climbers seem to have a problem opening them at first and it can be entertaining to watch. Unfortunately, I clipped into it to climb with a bowline on a bight rather than tying in with figure 8 knot and scratched it to crap.. Problems with being lazy. |
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 Cred: 315 | | Autolock is smooth, easy to learn to do quickly, and a real load of your mind with less experienced belay partners. Pretty much impossible to not lock it unless you break it and it comes in some spiffy colors. |
| Autolock can get sticky with age. I try to keep it as clean as possible inside the mechanism to prevent this. |
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 Cred: 390 | | Review by Zeric1 on Mar. 28, 2009 | | Great belay/rappel biner, feels very secure (ball lock). Large basket and gate opening good for master point. |
| heavy, I only carry one or two. Ball lock difficult to work with left hand, right hand is easy with a little practice. |
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 Cred: 312 | | I have the triact...takes some getting used to and I personally still find a little annoying to use. |
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 Cred: 23 | | Great screw type carabiner. |
| The price is a little steep. This is one of the first carabiners i bought, and i knew that petzl was high quality. There are carabiners that cost less, unless you want the name of petzl. |
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 Cred: 350 | | Review by Dusty on May. 13, 2008 | | Large open gate, lightweight for size, strong for size, color won't fade, wonderful for attachment to harness |
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 Cred: 348 | | Great autolocking belay biner. Takes a day or two to learn to flip this open fast (much faster than a screwlock). |
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 Cred: 278 | | Love the Triact-lock because of the security of knowing it will automatically close and lock, great for belay devices because of the pear shaped design. |
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 Cred: 99 | | Well used ones are hard to open. Auto-lock starts to stick after much use. |
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 Cred: 8 | | Review by nevko1 on Feb. 28, 2011 | | Very Usefull Biners. Great to have to if your stuck and need to Muenter hitch down. Usefully with Gloves, i prefer the screw-lock |
| sometimes pricey, but worth it. |
| DMM has a similar one, smaller though |
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 Cred: 315 | | Review by kord92 on Apr. 25, 2011 | | huge, key lock is really nice, and the triact locking mechanism feels really secure. |
| the lock is kinda tricky at first, but becomes easy enough with practice. |
| Kong makes a good auto locking 'biner. |
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 Cred: 497 | | auto lock is great, have not had it catch even once |
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 Cred: 1096 | | Its big, the screw lock is smooth, its my favoite belay biner so far |
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 Cred: 825 | | Very Light and greatfor your belay device |
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 Cred: 54 | | screwgate version comes open if not paying attentiion. |
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 Cred: 147 | | I have the ball lock and it's an ok locker for bellaying |
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 Cred: 238 | | Fast action screw-lock; large opening and lots of room to work with; light weight |
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 Cred: 68 | | My favorite big biners. Open up wide. Screwloack is smooth |
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 Cred: 313 | | great for clipping into the back of a harness for rappelling Aussie. |
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 Cred: 311 | | Love the locking mechanism. |
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 Cred: 28 | | Nice and big also means a little added weight. |
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 Cred: 11 | | best locker that I own. I like the large mouth that it has. Will buy additional ones |
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 Cred: 3 | | Big-- Good for belay or munter |
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 Cred: 3 | | The orange autolock version is great. |
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