Wet Diamond Core Drill Bit 1-1/2 In, 14 In Depth, 1-1/4 In-7

Wet diamond core drill bit delivers clean, accurate holes in reinforced concrete and masonry while reducing heat buildup for longer bit life. Designed for wet drilling, this 1-1/2 in (38 mm) laser-welded core bit cuts smoothly with less wobble, helping you work faster on HVAC, plumbing, and construction installs. Universal 1-1/4 in-7 internal thread fits many hand drills and drill stands.

• Fits standard hand drills and drill stands with a 1-1/4 in-7 internal thread for quick changeovers.


• Delivers smoother, burr-reduced holes with precision-ground teeth aligned to the rotation axis.


• Reduces overheating during wet coring to help maintain cutting speed and extend service life.


• Resists segment loss with laser welding and carbon steel body built for high-speed drilling.


• Handles reinforced concrete, red brick, concrete, and foam brick for versatile jobsite use.

Built for contractors and serious DIY users, this wet coring bit is a practical choice when you need consistent diameter, stable tracking, and reliable performance across dense materials. Use with water feed for cooler cutting, lower friction, and cleaner results—especially on deep penetrations. From air conditioning lines to plumbing runs, railings, and general construction, it’s ready for repeat drilling without constant bit swaps. Grab yours today and keep your next install moving.

• Bit diameter: 1-1/2 in / 38 mm


• Max drilling depth: 14 in / 356 mm


• Thread: 1-1/4 in-7 internal


• Welding method: Laser welding


• Material: Carbon steel body


• Compatible materials: Reinforced concrete, concrete, red brick, foam brick


• Compatible machines: Hand drills, stand drills


• Product dimensions: 16.81 x 1.85 x 1.61 in (427 x 47 x 41 mm)


• Net weight (incl. accessories): 2.32 lb / 1.05 kg