100% Brand new and high quality
The Ruby Sharpening stone is made from sintered crystals of synthetic ruby It's extremely hard, maintain their shape well and are resistant to wear Install easy in the a tool or machine, also easy sharpening and polishing all kinds of exact knives
For sharpening and polishing chilled steel, alloy steel and precision parts etc
Sharpening stone can use oil or water
Stone size: 10 x 4 x 0.5cm/3.9" x 1.6" x 0.2"(L x W x H)
Grit: 3000
Color: As the pictures show
Quantity: 1 pc

• The Ruby Sharpening stone is made from sintered crystals of synthetic ruby
• It's extremely hard, maintain their shape well and are resistant to wear
• Install easy in the a tool or machine, also easy sharpening and polishing all kinds of exact knives
• For sharpening and polishing chilled steel, alloy steel and precision parts etc
• Sharpening stone can use oil or water

The Ruby Sharpening stone is made from sintered crystals of synthetic rubyEstone