A precision-ground backing plate inlaid with permanent magnets in the new No. 8375 saw holder from Armstrong makes for faster, more accurate positioning of circular saws when sharpening, tip ping or swaging and shaping. A perfectly round saw is maintained by tightening the three-jaw center bushing against the inside of the saw eye with a quick turn of the hand nut. The expanding center bushing automatically adjusts to the small variations in saw bore sizes frequently found in splined arbor edger saws. This No. 8422 bushing is quickly replaceable with another size to match different size saw eyes.

The saw holder turns freely on two sealed ball bearings for smooth operation and minimal wear. These bearings fit over the standard 7/8" diameter mandrel supplied on all Armstrong automatic circular saw sharpeners as well as the No. 84 Autopoint automatic swage and shaper. The saw holders is locked on the mandrel with an inexpensive clamp collar, part number 3554, and does not need to be removed to change saws.

A special attachment is available at extra charge to allow a magnetic saw holder to be mounted on No. 54 and 54-C hand sharpeners. This attachment can also be ordered in place of the standard cone and carriage on new machines at no extra charge.

The Armstrong magnetic circular saw holders are more accurate, provide better lateral support and are faster and easier to use than centering cones of the bushings. This unit will quickly pay for itself whenever circular saws must be sharpened, tipped or swaged and shaped quickly and accurately.