This is the new gen 4 universal sight tool made by D.D.Machine
This tool grips "all 4 sides" of the slide to keep it from trying to tilt the slide while it exerts the thousands of pounds of force required to adjust or remove the sights. This tool does not need the extra block sets to "TRY" and grip the slide like most of the other tools offered on the market.
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By the use of non-metallic inserts that you bring into contact on the sides of the slide "AFTER" snugging up the lower clamp block you stop all chance of the slide tilting.
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