Hi Guys,

I have a bunch of small holes I'm going to be tapping - in the M2 to M4 range or 2-56, 4-40 etc.

I'm looking at my options for tapping and from what I've read so far it seems that some people with converted machines are having better luck with the auto reversing tapping heads versus the Tension / Compression heads that require spindle reversal.

So that is what I'm looking for - an auto reversing tapping head. My question: does anybody have experience with the cheap "tapmatic" knock off tapping heads sold by various ebay sellers or Shars (discount_tools), etc? like this one: 1/4" REVERSIBLE TAPPING HEAD NEW MACHINE TAP | eBay

Does the reversing ratio matter much (some are 2:1 some are listed as 1.6:1, etc)

I have the space for it on my mill (the MD001 - super siize RF45) as I have 18 inches of Z travel so that part doesn't matter.

Mike