Keyfit Tools trampoline swing set playset / Speed Staker / Drill In Your Heavy Duty Spiral Ground Anchors In Seconds. Multi Functional Works On Dog Ties Tree Anchors Screw in Tent Stakes Solid Steel For A Lifetime Of Use Easily drill in heavy duty spiral ground anchors Solid Steel for a lifetime of use Use closed box or T slot for more control. Use open box slot for larger stakes Hook one side of the T slot into the U shaped ring for ground anchors Non Slip 7/16" Hex Arbor works with all 1/2" cordless drills (Not for 3/8" Drill) Multi Functional works on spiral ground anchors, tree anchors & screw in tent stakes See all our Keyfit Tools ~Keyfit Tools Patented Products