Using your Makita 763625 - 8 1/4 Collet is easy. First, make sure your Makita die grinder, like the GD0800C, is turned off. Then, simply install the collet quickly and easily into the grinder. Once it's in place, you can attach most die grinder accessories for grinding, sanding, or polishing. When using the collet, always wear proper safety gear, such as goggles. Don't force accessories into the collet as it may damage both the collet and the accessory. For maintenance, keep the collet clean. After use, wipe it down with a dry cloth. Periodically check for any signs of wear and tear. If you notice significant damage, it's best to replace the collet to ensure optimal performance.