Sawfiler Variations include face angle, face length, back angle, gullet width and depth, and a frost notch (if necessary). Typical bandsaw tooth dimensions are 1-3/4" tooth space x 3/4" gullet depth x 3/4" gullet width (grinding wheel width) x 30deg face angle x 16deg back angle. Fitting means tooth dressing and involves swaging, shaping, gauging, and grinding. The tip of the saw tooth is swaged to a flare, then the sides are compressed in slightly with a shaper tool to an exact kerf. Then a final grinding pass is made. The usual gauged tolerance is +/- .005" in kerf, and <
Saunderson Tractor and Implement Co. Saunderson Tractor and Implement Co. H P Saunderson founded his Saunderson Tractor and Implement Company in Elstow, Bedford in 1890 after visiting Canada and seeing the Massey and Harris companies. In 1898 Saunderson demonstrated a "Self Moving Vehicle" at a trial organised at the Royal Show which it unfortunately failed to complete because of engine failure. It was priced at £250 but it is not known if any were sold. At this time it was the largest tractor company in the world, but went to be sold to a larger, vehicle manufacturing company. By the early 1900s production of 3-wheeled