Review on MAGBIT 625 95 0616 MAG625 2 Inch Extension by Derek Davie

Works great! Some sds+ shank diameters are larger than others. This one was a bit tight but I managed with a little push, it comes out fine too. Another needed some sandpaper on the shaft to fit it and another was a bit sloppy. I didn't have to change the hole for the extension shaft. After drilling a 3/4" diameter hole (minimum hole size for the large end of the shaft) in a 19" concrete and masonry wall, I suggest installing the screws in the sds+ concave joint profile rather than the keyway . Check the set screws every minute of use as I have found them to slowly loosen and come out. Warning! Do not overtighten the set screws! Better to spend time checking screws than stripping threads! Good device, I will buy again!