KVADRO - Ceramic Nail Bit - Corn, Yellow - XF #407

Quick Facts White ceramic corn-shaped head with a fine crosshatch of diagonal cuts Yellow ring on a steel neck, marking grit XF Labeled in the photo as a corn shaped polishing head Comes in a clear plastic tube with a yellow cap Where XF Sits on the Grit Scale KVADRO ceramic bits use a color code on the ring and the tube cap: Yellow XF: softest Red F: soft Blue M: medium Green C: rough Black XC: roughest #407 is at the first step of this scale. Its yellow ring and yellow cap make it easy to tell apart from the other grits in a drawer or on a stand. Specifications Detail Info Product Ceramic Nail Bit Model #407 Brand KVADRO Shape Corn Grit XF, yellow ring Head diameter 0.6 cm (0.23 in) Head height 1.3 cm (0.51 in) Total length 5 cm (1.96 in) Shank diameter 0.235 cm (0.092 in) Weight 7 g (0.24 oz) Packaging Clear plastic tube with a yellow cap, 7 x 1.3 cm (2.75 x 0.51 in) Questions What does the yellow ring mean? Yellow marks XF, the softest grit in the KVADRO ceramic bit color code. How is it different from the other corn bits? The head size is the same as in the other corn-shaped models in the line. The difference is the grit, shown by the ring and cap color.