Dear Neil, having made a version of Keith Johnson's excellent Pointmaster drill sharpener, it eventually dawned on me that it can also be used to sharpen LEFT handed drills by exchanging the angle wheels and their spacers 'end for end', this is actually shown on the GA (Fig 2 in the article, Oct. 2019) on the left hand sketch, where the wheel angles are given. However, this view is of the non-collet end but if this point is ignored, the geometry is correct. The Pointmaster's range fits neatly between my DAG Brown micro drill sharpener and the Quorn and has already had a lot of use! Attached, for clarification, are some pics of the set up and of sharpened left & right hand drills. As I have arthritic hands, l added the spindle extensions to the wheel sets to give me better grip and control. Many thanks to Keith!
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