I ordered the M18 impact with pin detent kit from International Tool last week. I've had minimal use so far but did test taking several sockets on/off:
Pittsburgh/Pittsburgh Pro 1/2" impact sockets: went on easy, when I misaligned the pin and hole the socket came off easily and did not get stuck.
SK 1/2" impact socket: went on ok. A couple of times it got hung up on the pin. When I misaligned the pin/hole it came off easily.
Armstrong 1/2" impact socket: no issues on or off.
Craftsman USA 1/2" chrome, Wright 1/2" chrome, Armstrong 1/2" chrome, Kobalt USA chrome: all consistently hung up on the pin when putting it on. No issue getting off when the pin/hole were misaligned.
Snap On 1/2" drive, 1-1/2" chrome socket: I did not put this socket on for fear of it getting stuck on the pin. The detents in the socket itself are deeper than the other sockets I tested and I was afraid it would get stuck with no way of pushing the pin back.
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