1-Inch Wet Diamond Core Drill Bit, 14-Inch Depth, 5/8-11

Diamond core drill bit delivers clean, accurate 1-inch holes in concrete and masonry with wet cutting to reduce airborne dust. Designed for a 14-inch / 355 mm max drilling depth, it pairs a diamond-grit head with a stable concentric shaft to help minimize wandering and keep cores true. The universal 5/8"-11 inner thread fits many handheld drills and core drilling setups, making it a practical choice for site work, renovations, and indoor installs.

• Fits 5/8"-11 inner-thread adapters for quick mounting on compatible handheld drills and core rigs


• Delivers dust-reducing wet coring when used with water cooling and lubrication


• Maintains accuracy with concentric shaft and regular tooth layout to help prevent center offset


• Resists wear with carbon steel body, diamond-grit cutting edge, and laser-welded segments


• Handles reinforced concrete, brick, block, and foam brick for HVAC, plumbing, railing, and conduit runs

Built for jobsite reliability, this wet diamond coring bit balances speed, control, and service life for demanding materials. Laser welding helps keep segments secure under load, while wet operation supports smoother cutting and cleaner work areas—especially important in enclosed spaces. Use it for through-holes and pass-throughs in concrete walls and masonry where consistent diameter and depth matter. Grab yours today and keep your drilling setup ready for the next install.

• Bit diameter: 1 in / 25.4 mm


• Maximum core depth: 14 in / 355 mm


• Overall dimensions: 17.7 x 1 x 1 in / 450 x 25.4 x 25.4 mm


• Thread: 5/8"-11 inner thread


• Welding method: Laser welding


• Net weight (incl. accessories): 1.1 lb / 0.52 kg


• Compatible materials: reinforced concrete, concrete, red brick, foam brick, block


• Compatible machines: handheld drills, core drilling equipment


• Application: wet use