Model 9977 14.4 Volt Keyless 1/2" Ratcheting-locking steel chuck, with carbide jaws, provides maximum bit-gripping strength, holding power and durability 420 in-lbs maximum torque Two speed-range gearbox [0-450 rpm and 0-1400 rpm]: low speed for maximum torque and control, high speed for rapid drilling and driving 18,200 maximum blow per minute in hammerdrill mode 3-stage planetary gearing system provides smooth operation and long life 22 position adjustable clutch Compact size makes it easier to use in tight spaces One-hour battery charger charges Porter-Cable 12V and 14.4V batteries Shock resistant case with metal latches and bit storage compartment Standard Equipment: 14.4 Volt hammerdrill/driver, two 14.4 Volt batteries, one hour battery charger, case and operating manual  | Power 14.4 Motor Output Watts 331 | Torque Output (In./Lbs.) 420 Chuck Size (Inches) 1/2" | |
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