Reliable handguard is a must and easy to use. The downside, and it can only be me, but do not score, and the instructions indicate that the chisel will be. Bought this to cut pavers after reading articles and watching videos but had to hammer several times and still the pavers not only break on the lines but have very jagged edges. Maybe it's me, maybe it's pavers, but it looks like a chisel and if it's true, it's a 4.