Hole EE shit makes this thing fissile. If you want a smooth wood finish, DO NOT BUY THIS. However, if you just want to dig a lot of holes quickly, "BUY IT NOW". In my work we build very large forms. Big car size. I mean big shapes. Now we need to cut 100 to 300 5" holes in 5/8" OSB wood torsion box shapes during this process. We used conventional, high-quality hole saws. person take 3 to 7 hours. I'm not exaggerating when I tell you it cut that time by 75% with a lot less effort on the part of the technicians. It uses the same cordless drill as before. After that we sand the area of the hole, but we've done that before. If you then combine this hole saw with a core ejection system, you get the golden ticket combo from the same company.