Selection of Tools: Diamond Size Choosing a stone of the right size is an important factor in keeping diamond tool costs down while doing a perfect job. Use of too small a stone induces rapid wear.On the other hand, the use of too large a diamond may also be wasteful. Selection of the proper size stone is dependent, to a great extent upon the size wheel to be dressed. SPI 404 Series

• Premium Quality Diamonds.
• Five resets guaranteed.
• Standard Shank Size 7/16" x 2".
• Up to 1/2 Carat without head.