I was very disappointed in this product as I bought it for an impact driver bit. DeWalt sells long bits specifically for this purpose. You have a bit on both ends of the workpiece. Unfortunately, they get too deep into this bond and get completely stuck. I ended up digging a hole in the ground to get it out. Very frustrating. Works well for short pieces, but this deficiency would have put me off purchasing had I known about it beforehand. Fair warning!