A.Tool editor Dave Crosby responds: I called several cordless tool manufacturers about your question, and it seems that the disappearance of the trigger guard is a change in style as much as anything. To keep your cordless driver-drill from running by itself in your hammer loop or nail bag, try putting the forward/reverse selector in the midway, or "neutral," position. Some tools are intentionally designed by the manufacturers to lock the trigger in this position. Most tools, even if not specifically designed to do so, will resist light to moderate trigger pressure with the selector set halfway between forward and reverse.

But heavy pressure on certain tools will allow the selector to engage one way or the other, so even though this usually works, it’s obviously a compromise. If your particular tool isn’t designed to actually lock the trigger securely, there could be a safety consideration here, so if you decide to do this, use care. As for bringing this common...

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