I’ve never found the cheaper* cable tie “guns” (tensioning & cutting tools) to be much improvement over the traditional pull (tension), twist & snip (simultaneously) method, using diagonal cutting pliers.
* Cheaper cable-tie tools can be had for $10 - $25, whilst newer, more expensive “ergonomic” manual guns
cost around $200 and more.
When installing cable ties, do not over tighten the tie. Pulling the cable tie too tightly against the insulation
of the cable can cause damage to the cable. Also, use a cable tie with appropriate width. Large, heavy cables
should not be secured with narrow width ties.
When installing cable ties, be careful to cut the plastic tie as close as possible to the lock mechanism, so that the remaining material is square and flush with the lock. I apply a slight twisting motion as I cut the tie.
Cutting cable ties on an angle and leaving a small portion protruding results in the creation of a small plastic knife. Reaching into a bundle of wiring
with cable ties improperly trimmed can result in having one's hand cut from the small plastic knives created.
If a cable tie has to be removed, it is best to cut the tie on the input side of the locking ratchet mechanism. This will allow the tie to be re-used. The portion of the cable tie in the locking mechanism can be pushed out, and the cable tie can be used again, albeit that it must be tightened to a smaller loop diameter.
Cable ties which will be installed so that they are exposed to sunlight and weather
should be of high quality and made of plastic designed to tolerate UV exposure. The garden-variety white-translucent nylon cable tie does not hold up well if exposed to sunlight for long periods.
Other methods of bundling cable together securely and semi-permanently include cable lacing, binding knots such as the surgeon's knot
or constrictor knot
, Velcro type hook-and-loop strips, etc.
Although the judicious application of heat can soften the trimmed end of a nylon tie, easing the sharp edges, great care must be taken to not overheat the tie, or the cable it’s securing. I don’t generally recommend the practice.
Thomas & Betts Ty-Rap Cable Tie Installation Tools:
Panduit Cable Tie Installation Tools: