The M12 FUEL™ SURGE™ ¼″ Hex hydraulic impact driver is MILWAUKEE®'s quietest 12V impact driver, delivers best in class sound at only 76 dB(A) in wood fastening applications FLUID-DRIVE™ hydraulic powertrain reduces metal on metal contact within the tool, delivering quieter operation, smoother performance and increased durability over a standard impact 4-Mode DRIVE CONTROL allows the user to shift into four different speed and torque settings to maximise application versatility POWERSTATE™ brushless motor delivers up to 0 - 3.200 rpm with constant power output to drive screws faster REDLINK PLUS™ intelligence system delivers the most advanced digital overload protection for tool and battery and uniquely enhances the tool performance under load REDLITHIUM™ battery pack provides superior pack construction, electronics and fade-free performance to deliver more run time and more work over pack life