Primer pocket uniforming tool?

I use the Sinclair PP reamer chucked in a drill in a bench vise. I have not used the K&M, the Sinclair has worked well for me. K&M makes good stuff. I use their hand priming tool. It's a great tool.
 
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Lyman 4-way tool. $21
Yellow anodized tool.
Comes with replaceable bits for large and small primer pocket uniformers plus a chamfer bit great for removing mil crimps
Just did 500 LC 308 brass with it, couldn't be happier.