1995
AL#44 p.52   BRB4 p.434            
Harry Fleishman                                                                                           

▪ This time the GAL’s Toolman tests a Stewart-MacDonald diamond coated fret file, and the Hacklinger gauge for measuring the thickness of instrument tops and backs. He likes the file enough to recommend it. He likes the gauge, too, but its high price puts him off.