Milwaukee® diamond wet core bits are designed to the highest standards, only using quality diamonds. Available in sizes 1 to 6 in. Milwaukee® 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 bits is 15 in length and contains a 1-1/4-7 thread. Milwaukee® Wet Core Bit, Pre-Stressed, 15 in Overall Length, 15 in Cutting Depth, Diamond Cutting Edge, Applicable Materials: Masonry