Wet Diamond Core Drill Bit, 4 in, 1-1/4 in-7 Thread

Wet diamond core drill bit 4 inch delivers fast, clean holes in concrete and brick while reducing heat buildup for smoother, longer drilling. Designed for wet coring, it helps lower friction and supports steady cutting on tough materials like reinforced concrete and masonry. The universal 1-1/4 in-7 internal thread mounts quickly to compatible hand drills or stand drills, making it a practical choice for HVAC, plumbing, and general construction hole-making.

Built for demanding installs and renovations, this wet coring bit is engineered to keep cuts smooth and edges clean, helping reduce rework when routing pipes, conduit, anchors, or AC pass-throughs. Use with water for best results to control dust and temperature during high-speed drilling. Whether you’re working on stair railings, masonry walls, or concrete slabs, this core bit offers a dependable balance of speed, control, and longevity. Grab yours today and prep your drill for the next concrete or brick opening.