Yes, there are solutions similar to magnetic drill presses for wood that can help you achieve precise drilling at exact positions, even when your standard drill press cannot reach.
Portable Drill Guides: A portable drill guide is an excellent tool for ensuring that your hand-held drill creates holes at a perfect 90° angle. These guides are typically adjustable and can be clamped or fixed onto your workpiece, giving you the precision of a drill press without the size limitations.
Vacuum Clamping Systems: For larger workpieces that can't be moved easily, a vacuum clamping system can be used in combination with a portable drill guide or hand drill. This system holds the guide securely in place on the wood, allowing for accurate drilling without the workpiece shifting.
Bench-Mounted Drill Guides: If you're looking for a bit more stability and control, bench-mounted drill guides are another option. These can be mounted onto your CNC table, and although they are not as portable as hand-held guides, they offer greater precision for drilling perpendicular holes.
Jigs and Fixtures: Consider making or purchasing custom drilling jigs tailored to your specific workpiece. A well-designed jig can ensure accurate hole placement and angle, even over large distances, which is especially important for two-sided CNC machining operations.
Spindle Attachments for CNC Machines: If you have a CNC machine, you might consider using a spindle attachment that can hold a drill bit. This allows you to program precise drilling operations directly from your CNC machine, ensuring perfect hole placement and angle.
Magnetic Base for Wood: While traditional magnetic drills are designed for metal, you can find or create a system where a magnetic base is attached to a steel plate, which can then be clamped to your wooden workpiece. This isn't as common, but it's a workaround that some woodworkers have used successfully.