But as they say with great power comes great responsibility. Both these drills have kickback control which reduces the risk of sudden tool reactions in binding conditions. There is an integrated acceleration sensor that automatically shuts the tool down when a potentially dangerous rotational torque reaction occurs in a bind up scenario. It's pretty cool tech. I'll show a video tomorrow.
The big boy is Brushed but don't let that fool you because it's packing some power. The compact brushless is also serious for its size.
Both have all metal Chuck that have tips spin freely. I really like that, I'm sure we've all been in situations where the front of the chuck has rubbed on material and messed it up.