Using your Milwaukee 2420 - 21 Hackzall Saw is easy. First, make sure the 12V LITHIUM - ION battery is fully charged using the 30 - minute charger. Then, use the QUIK - LOK™ blade clamp to attach one of the included Hackzall™ blades. Press the variable - speed trigger to start cutting. You can adjust the speed according to the material you're working on. When you need to change the blade, just use the keyless QUIK - LOK™ blade clamp again. As for maintenance, after each use, wipe down the saw to remove any dust or debris. Keep the all - metal gear case clean to ensure its durability. Also, store the saw in the provided carrying case to protect it from damage. Remember to always wear safety goggles when using the saw to protect your eyes.
