These 5-1/2" long rifflers have micro diamond chips fused to their steel shafts and a rubber sleeve for sure grip. Excellent for working on metal, wood, stone, plastic or tile. 1-1/4" of diamond surface and all tips are bent to a 30 degree angle. Flat, round, oval, triangular and tapered profiles. Size: 5x 180MM x 40MM x 10pcs/set