Perfect for engraving concave shapes, our Ball diamond burs (SKUs 3-1109 & 3-1159) come in 80-grit (coarse) and 120-grit (medium-fine). Each spherical bur is electroplated on a 3/32 stainless-steel shank and measures 1-3/4 overall.
Style options (SKU): 3-1109, 3-1159
SKU: 3-1109
Size: (4 × 4 mm) (Diameter × Length)
Type: Ball
Grit: 80 (coarse)
Bond: Electroplated
SKU: 3-1159
Size: (4 × 4 mm) (Diameter × Length)
Type: Ball
Grit: 120 (medium-fine)
Bond: Electroplated
