SKU SDBRSET
Sintered burs will last 5 to 10 times longer than diamond plated burs and up to 100 times longer than various types of silicon carbide or aluminum oxide mounted abrasive points. The set consists of 20-pieces of sintered diamond burrs for engraving granite and concrete. It comes 1 each of 20 different shapes with 1/4 in. round shafts.