Wet Core Bits for Hard Material, OE10P Premium Application: Hard Concrete, Granite, Brick, Reinforced Concrete, Concrete Block 8mm (.315") Segment Height 14" long barrel Part # Description OE10P02015A 2 X .155 X 1 1/4 - 7 OE10P02215A 2 1/4 X .155 X 1 1/4 - 7 OE10P02515A 2 1/2 X .155 X 1 1/4 - 7 OE10P02715A 2 3/4 X .155 X 1 1/4 - 7 OE10P03015A 3 X .155 X 1 1/4 - 7 OE10P03215A 3 1/4 X .155 X 1 1/4 - 7 OE10P03515A 3 1/2 X .155 X 1 1/4 - 7 OE10P04015A 4 X .155 X 1 1/4 - 7 OE10P04215A 4 1/4 X .155 X 1 1/4 - 7 OE10P04515A 4 1/2 X .155 X 1 1/4 - 7 OE10P05015A 5 X .155 X 1 1/4 - 7* OE10P05515A 5 1/2 X .155 X 1 1/4 - 7* OE10P06015A 6 X .155 X 1 1/4 - 7 OE10P06215A 6 1/4 X .155 X 1 1/4 - 7 OE10P07016A 7 X .165 X 1 1/4 - 7 OE10P08016A 8 X .165 X 1 1/4 - 7 OE10P09018A 9 X .185 X 1 1/4 - 7 OE10P10018A 10 X .185 X 1 1/4 - 7 OE10P12018A 12 X .185 X 1 1/4 - 7 OE10P14018A 14 X .185 X 1 1/4 - 7