7pcs Drill Bit Stop Collars Set Exact Hole Depth Bits Locator Drill Clamp Metric 3mm 4mm 5mm 6mm 8mm 10mm 12mm + 1pc Hex Wrench

These Depth Stop Collars Will Give You Complete Consistent Control Of Your Drilling Depths. This Is Especially Useful For Drilling Dowel Holes . They Can Also Can Be Used To Give You Precise Control Of Your Pocket Hole Depth When Using Your Favorite Pocket Hole Jig And Drill Bit. Simply Insert On Your Drill Bits To The Desired Depth And Tighten The Set Screw. Hex Key In Picture Is Currently Included