In tandem with DCD791 generally ideal. More convenient than the Bosch "pistol" grips. Now the last only occasionally zenkuyu and other infrequent work.
Pros
Compactness with such torque. Who doubts - take it, especially if for shares like mine (8100). The rest was written by enthusiastic users before me. Fully agree with them.
Cons
There is a backlash of the cartridge, but insignificant. This is only my copy - I chose from two. A year later, in a hardware store, I went to the same one and checked - there was no backlash at all. In a word - a lottery (yes, I always have a caliper and a sample of an even drill and 150 mm equipment with me)
Drill 1 mm does not clamp. Plastic cartridge, but this is already nit-picking.