DMM A337 Ultra D Locksafe Carabiner, Titanium/Green Drive Links_86 You also need a saw

You also need a saw chain advanced enough to tackle tough jobs

keeps hands warm in cold conditions

a prusik line that will last

The DMM Shadow features a massive 9 kN gate open strength and incorporates a new keylock nose

Automatic chain grinder Griding Motor for professional end users seeking an efficient and profitable solution for high-volume chain sharpening

DMM A337 Ultra D Locksafe Carabiner, Titanium/Green Drive Links_86 You also need a sawThe Ultra D is similar in size to the Ultra O but with even greater strength due to the back configuration. The pronounced D shape forces the loading along the major axis of the carabiner to maximise strength. Perfect for use at the end of lanyards, and in fact for most other working at height applications.