MILWAUKEE® Diamond Wet Core Bits are designed to the highest standards, only using quality diamonds. Available in sizes 1" – 6", MILWAUKEE® Diamond Pre-Stressed Wet Core Bits are designed specifically for the extra demands of drilling pre-stressed concrete. The cutting segments feature small gaps, preventing the bit from snagging on pre-tensioned cables or wire mesh. This bit is 15" in length and contains a 5/8"–11 thread.