The SP-650 Stone Grader enables you to customize the sharpening attributes of your Original Grindstone or Blackstone Silicon. By adjusting the characteristics, you can achieve a grit range of 220 to 1000. Use the fine side of the stone grader for finer sharpening, and the coarse side to maintain the grindstone and renew the grit, resulting in more efficient and coarser sharpening. Why SP-650 Stone Grader? Adjust the grit of your grindstone to an equivalent of between 220 and 1000 grit. Works with your original grindstone as well as the SB-250 Blackstone Silicon. The fine side can be used to clean your Japanese Waterstone. Easy to use, just press against the grindstone. Works with the Tormek T-8, Tormek T-4 and older models. Fine sharpening or high material removal The SP-650 Stone Grader enables you to modify the properties of the grindstone to match those of 220 to 1000 grit. By pressing the fine side of the SP-650 Stone Grader against the running grindstone, you can achieve a finer sharpening surface. To enhance the material removal and increase the roughness of the sharpening, simply press down on the coarse side of the stone grader while the machine is running. After a few seconds, you'll notice a noticeable change in the surface and sound of the grindstone as it is graded. Grindstones with adjustable grit The Tormek SG-250 Original Grindstone, SG-200 Original Grindstone, and SB-250 Blackstone Silicon are adjustable from coarse to fine sharpening, thanks to the SP-650 Stone Grader. Benefit from a coarse grindstone by rapidly removing a significant amount of steel and efficiently completing final sharpening without switching equipment. The process maintains a consistent sharpening angle without additional adjustments, except for the grit used. SP-650 Stone Grader for maintenance Utilize the rough surface of the stone grader as necessary to maintain the cleanliness and efficiency of your original grindstone or SB-250 Blackstone Silicon. Firmly press the grader against the stone for approximately 30 seconds. This technique causes no excessive strain on the stone and can be repeated indefinitely. You can also use the fine side of the SP-650 Stone Grader to clean your SJ-250 or SJ-200 Japanese Waterstone similarly, avoiding the coarse side to prevent any damage to the grindstone. Weight Shipping weight 0.45 kg (0.99 lb) Colour Gray Material Ceramic bonded silicon carbide Warranty 2-year warranty Documents Instructions SP-650 EN Patents To see all patents, please visit tormek.com/patents
