90 degree angled screwdriver attachment allows access to tight corners quick change chuck ensure tool is held securely use with bit holders direct drive or insert screwdriver bits hex drills and drillcountersinks two position handle for maximum control heat treated steel precision gears for maximum torque die cast head with ball bearing guides for stability use in cordless and corded drills can be used with impact screwdrivers with following specification maximum 12v maximum torque 80nm 816 kg