The Oliver Model 21HD Drill Pointer represents the finest approach for sharpening small drills that is available on the market today. Tests have shown the procedure used for sharpening larger drills on most conventional drill points cannot be depended upon for sharpening smaller drills. It is very difficult to locate off the flutes of small drills and therefore, the Oliver method of chucking the drill on the ground margins insures a much higher degree of accuracy.
The Oliver Model 21HD Drill Pointer is a complete precision machine tool for accurately grinding drills from 3/32” to 1/2” diameters. The familiar Oliver point, having increased clearance as the center of the drill is approached, is produced on this unit. The style of grind shows up to advantage on drills approximately 1/8” diameter and larger. The unusual grinding action is obtained by means of cam actuated swivel bearing which moves the drill in a horizontal plane while being swiveled vertically. The Model 21HD will also produce the standard conventional constant clearance drill point if desired.