Rod Naylor designed this drill clamp to be part of his Supersharp Sharpening System — it lets you mount your electric drill to your bench and tilt it to any angle in any direction. Besides sharpening you can also use this setup for sanding, buffing, polishing, or anything else that requires you to move the work over a stationary tool.
The drill clamp works with European-style drills with a 1-3/4″ x 7/8″ collar for attaching an extension handle; if you own a hammer drill it probably has this collar, too — mine do. The clamp attaches to tables up to 2″ thick.
You’ll shell out about $30 for this drill clamp.