I have a 6" Nils Master but it is on a Tanaka power head. It came with a screw in handle for changing to manual. The cutting head is really different than all the other hand augers. I have cut hundreds of holes in 3+ feet of ice and it is still sharp. I tried it as a manual and it cuts ice like butter but we have over 1 foot of ice already and it is time for the power head. I have an old 5" Strike Master and a 6" Mora but neither can open a previously drilled hole easily. The lazer is better than the other two in my estimation.