Fix/Adjust securing pin on 9X12 insert

[JohnAnthony]

Just received some bits I ordered, and noticed one had the securing pin protrude further than normal, this somehow makes it tedious to get onto the wrench. Does anyone know how these are adjusted/installed at the factory?

I was able to take it apart, but there doesn't seem to be any obvious way to assemble it in a different way that would allow the pin sit further in the bit. I've attached some photos below to show the difference, and the arrangement of the parts inside bit.

 

[no704]

Nice job on the photos, no idea what we are looking at.

 

[Moose-LandTran]

Nice job on the photos, no idea what we are looking at.

Locking pins and insert heads for interchangeable-head torque wrenches.

 

[dutchgray]

I would just grind the top of the pin down a bit until it was the desired length.

 

[JohnAnthony]

I would just grind the top of the pin down a bit until it was the desired length.

I might end up doing that if Wera confirms it's a manufacturing/assembly defect. I'm just hesitant because I won't be able to do it cleanly without a lathe.

I think when they drilled the hole it was not as tight so the pin is able to stick out further. And the additional play prevents it from going into the 9x12 receiver as easily.

 

[dnschmidt]

How does a lathe relate to grinding a pin down? I grind stuff with either a belt sander or an angle grinder. To do this job I'd use my belt file. 5 seconds later job done.

 

[JohnAnthony]

GOT IT! ....sort of

I installed the pin upside down

Looks like the pin may have been machined excessively/incorrectly on one end, and the line worker installed it upside down to hide the incorrect end.

I snapped off that little tip/****** that was on the bottom end of the pin. Flipped the pin so the long end sits in the spring, and the shorter end functions as the locking end. This allows the spring+pin fit more snug inside the bit, and no special shiming to get the bit onto the torque wrench.

How does a lathe relate to grinding a pin down? I grind stuff with either a belt sander or an angle grinder. To do this job I'd use my belt file. 5 seconds later job done.

To clarify my previous concern; shaving some material off the pin with a bench grinder (or similar) isn't hard. It's a very small pin, removing the material accurately as to not have further issues inserting it in the torque wrench is what I was hesitant about.