Using your Bosch ITDEPHV2503 bit set is easy. First, pick the right bit for your job. Just insert it into your impact driver and you're ready to go. When you're using it, make sure the bit is firmly in place to avoid cam out. These bits are designed for high-torque impact drivers, so they can handle a lot of power. But don't overdo it. If you notice the bit starting to wear out, it might be time to replace it. For maintenance, keep the bits clean. You can use a dry cloth to wipe them down after each use. Store them in a dry place to prevent rust. The high-visibility sleeves are there to help you easily find the right bit, so take advantage of that feature. With proper use and care, your Bosch bit set will last you a long time.