Rocklock Twistlock


Rocklock Twistlock
Page Type Gear Review
Object Title Rocklock Twistlock
Manufacturer Black Diamond
Page By Dow Williams
Page Type Oct 14, 2007 / Oct 14, 2007
Object ID 4125
Hits 3118

Product Description

Black Diamond's largest belay and rappel locker, the RockLock features a keylock nose and is Munter Hitch compatible. It’s available as a screwgate or twistlock—both can be operated with one hand.


WEIGHT: 85 G (3 OZ) Screwgate
85 G (3 OZ) Twistlock

COLOR(S): BD Orange w/ assorted sleeves
CLOSED GATE: 24 kN (5395 lbf)
OPEN GATE: 8 kN (1798 lbf)
MINOR AXIS: 7 kN (1574 lbf)



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Dow Williams - Oct 14, 2007 1:58 pm - Voted 2/5

had one deteriorate this quick...the price of getting them light no doubt...but I just bought this belay/rappel locker earlier this year....I do bring a lot of folks up on 2nd with double ropes with a Black Diamond Guide...but of course most of this wear is the heat generated on doubles during much of a weight freak as I am, I will stick with a more substantial personal locker. I don't recommend this biner for the full time climber. The grooves are actually deeper than they look in this photo.

Augie Medina - Jan 28, 2009 2:25 pm - Hasn't voted

Canyoneering Use
I bought a couple for canyoneering use because of their light weight, ample size and good price. After a few months of use, I haven't noticed the problem that Dow mentions above, but I will be vigilant for it.

Brian C - Aug 5, 2013 11:50 pm - Voted 4/5

I liked it
but it did wear out fast. This carabiner got grooves so deep that I threw it out after about 2 years. Price is right though.

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