Pocket hole drill bits are manufactured at high speed and combine high hardness, high impact strength and high heat resistance. Perfect for making high quality drill bits. Perfect Replacement: Drill bits are a good alternative to old or worn drill bits. Stable and sturdy enough to handle a variety of tasks. Slides easily into any type of wood and leaves a clean hole. Wide Compatibility: The drill guide is perfect for manual pocket hole jig system or used alone. Used for punching and positioning wood holes, punching aluminum, punching thin metal, etc. Perfect for woodworking or DIY enthusiasts. Have all the necessary parts, can fit properly, the drill bit was sharp and cost-effective. Used for punching and positioning wood holes, punching, punching thin metal, etc. Installation and removal are very easy, work well with the manual pocket hole jig master system. The pocket hole drill bits a great shape. Its great to have the option of the 1/4 inch hex key for installation in the hex bit.