Fred_M1010
1/2 ton status
I've borrowed a Snap-on R121 tapered reamer (also called #220) from a friend,
to ream out the pitman-arm and steering arm on my dodge,
to fit a Chevy drag-link.
First I was a little chocked when I read "Hand equipment ONLY, DO NOT use with power tools" on the label
But I googled it and found out that many people had used it,
and it had worked ok as long as rpm's was kept low,
and a lot of coolant was used.
But I couldn't find any markings about what taper it had.
So I measured it, and that's when I got the real shock...
The taper isn't 1:8 as it should be, it's about 1:6.7
THIS MEANS THERE WOULD BE A 0.5mm (~0.02") OF PLAY IN THE BIG END OF THE TAPER IF I USE A CHEVY DLE


How the heck can this be sold by some companys to be used as a reamer for chevy DLE/TRE:s!

If it where the other way around and it had the play in the small end, I might have dared to used it.
But this way it increase the leverage on the pin, and will probably wear out the hole and snap off eventually.
Just wanted to give you guys a heads up, if you didn't already know this.
to ream out the pitman-arm and steering arm on my dodge,
to fit a Chevy drag-link.
First I was a little chocked when I read "Hand equipment ONLY, DO NOT use with power tools" on the label

But I googled it and found out that many people had used it,
and it had worked ok as long as rpm's was kept low,
and a lot of coolant was used.
But I couldn't find any markings about what taper it had.
So I measured it, and that's when I got the real shock...
The taper isn't 1:8 as it should be, it's about 1:6.7
THIS MEANS THERE WOULD BE A 0.5mm (~0.02") OF PLAY IN THE BIG END OF THE TAPER IF I USE A CHEVY DLE



How the heck can this be sold by some companys to be used as a reamer for chevy DLE/TRE:s!

If it where the other way around and it had the play in the small end, I might have dared to used it.
But this way it increase the leverage on the pin, and will probably wear out the hole and snap off eventually.

Just wanted to give you guys a heads up, if you didn't already know this.

