I got this right angle attachment for my drill. On it's hex key, there is a steel ball. What is it's purpose? As I can't find a hex bit that has a hole for this ball to lock into -- though I can find the opposite, a bit with a ball. Never mind that it's located on the edge of the hex, rather than on the flat end.
1 Answer
That ball fits into a groove that is on most bits - hex or flat or posidrive so they don't fall out.
If the bits don't have a groove then it is the spring force / friction that stops the bit from falling out.
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So by that it means that it should retract inwards somewhat when you're inserting the hex bit, and push back to the grove, so it holds it in place?– DehbopJul 22, 2017 at 12:18
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