Diamond core drill & bits segment is supplying for concrete and reinforced drilling offering excellent durability diamond and cobalt powderThis item is special shape for different drill bits. Good sharpness & long life. Fast drilling and good quantity of drilling holes reasonable price with excellent service & quality delivered pricing category rs 1500 to 6500/piece other specifications diameter mm segment size mm teeth pcs core bit length 102 24 4. 5 10 9 450 mm 108 24 4. 5 10 10 450 mm 120 24 4. 5 10 11 450 mm 127 24 4. 5 10 11 450 mm 140 24 4. 5 10 12 450 mm 152 24 4. 5 10 13 450 mm 159 24 4. 5 10 14 450 mm 165 24 4. 5 10 15 450 mm 203 24 4. 5 10 18 450 mm