Why Use the SP-650 Stone Grader?
- Enables grit modification on your grindstone to mimic 220 to 1000 grit surfaces.
- Compatible with both Tormek Original Grindstone and SB-250 Blackstone Silicon.
- Capable of cleaning your Japanese Waterstone with its fine side.
- Simple activation by pressing against the rotating grindstone.
- Fits Tormek T-8, T-4, and earlier machine models.
Custom Sharpening from Coarse to Fine
The SP-650 offers the versatility to customize your grindstone for either detailed fine sharpening or more robust material removal. Applying the grader’s fine side to an active grindstone refines its surface for delicate sharpening tasks. To return the grindstone to a coarser state for more efficient material removal, the coarse side of the grader reactivates the stone’s abrasive properties, evident by the stone’s altered texture and operational sound.
Adaptable Grit for Tormek Grindstones
Tormek’s SG-250, SG-200, and SB-250 Blackstone Silicon grindstones are designed to have their sharpening characteristics altered with the SP-650 Stone Grader. This adaptability is advantageous, allowing for both significant material removal and precision sharpening on a single stone, maintaining consistent angles without the need to change tools.
Maintain Efficiency with SP-650
Utilizing the SP-650’s coarse side regularly will help maintain your grindstone’s effectiveness by keeping it clean and sharp, a process that can be repeated as needed without causing extra wear on the stone. For maintaining SJ-250 and SJ-200 Japanese Waterstones, the fine side of the grader is recommended, ensuring the coarse side is avoided to prevent potential damage to these softer stones.
SPECS AND DETAILS
Weight
Shipping weight 0.45 kg (0.99 lb)
Color
Gray
Warranty
2-year warranty
Material
Ceramic bonded silicon carbide
Patents
To see all patents, please visit tormek.com/patents
Documents
Instructions SP-650 EN
VIDEO
How to Use the SP-650 Stone Grader
The stone grader is used to modify the properties of the grindstone. The fine side brings the stone’s surface up to around 1000 grit. The coarse side returns the stone to 220 grit. The stone grader can also be used to reactivate blocked stones.
INCLUDED IN THE BOX
The SP-650 Stone Grader comes fully assembled and ready to use.
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