The Flex™ 24 V 1/4 in hex compact impact driver packs big power into a compact size so you can power through the day with a lightweight, durable tool built to conquer hard to reach spaces. This compact cordless impact driver is 17% lighter weight than its larger counterpart, FX1351 and an ideal tool for electricians, HVAC pros and driving tech screws for metal framing. It includes two speed modes for more control while fastening screws and self-tapping screw mode optimizes this impact screwdriver to avoid over tightening, breaking or stripping. This compact 1/4 in impact driver delivers exceptional runtime with the ability to drive up to 350 3 in screws into 2 x 4 lumber with the included Flex™ 24 V 2.5 Ah lithium battery. This compact impact driver delivers the Flex™ Advantage of unmatched battery power, runtime and fast charging. The impact driver set includes the cordless impact driver, a 2.5 Ah lithium battery and 160 W fast charger.