05146ac7_r_Drills___Climbing___Climbing__Hand_Drill
[Category] Limitations [Power Drill] You need energy, and not the kind you get from rest and a granola bar. Power drills run on batteries, and if you’re out of juice, you’re out of luck. Though battery technology is steadily improving, drills still suck up power like a camel at an oasis. [Edge] Power Drill [Hand Drill] 
Its biggest shortcoming is the energy and time drilling by hand requires. By the time you sink one route worth of bolts, you’ll be so zapped that climbing the damn thing will seem improbable. Plus, it’s harder to create a hole as precise as a power drill’s, and neater holes mean stronger bolts.
Smackdown! Hand Drills vs. Power Drills - Climbing | Climbing
Hand Drill