I purchased this drill because I wanted a powerful 1/2" drill.  I like this drill because its rpm's match its purpose.  I originally purchased the same drill with 2 speeds and the hammmerdrill function.  I thought it was to big and really didn't like worrying about something else to break.  The rpm range is ideal for heavy drilling.  I received the drill, contractor bag and a set of spade bits for $99.00.  I tried the drill out using a 1 inch spade bit through an 8 inch oak branch.  It drilled straight through and never bogged down.  I am glad I got the 7.8 amp drill versus the 6.7 amp drill.  I really recommend this drill.