Diamond Core Drill Bit 51 mm, M16, 241 mm Depth Kit

Diamond dry coring bit set delivers clean, accurate holes in reinforced concrete and masonry with less wobble and faster positioning. The 51 mm (2 in) core drill bit with M16 internal thread pairs with common drills and hammer drills, and the included pilot drill helps start holes without pre-drilling. Built from carbon steel with laser welding and precision-ground teeth, it’s designed for steady, burr-reduced cuts in concrete, red brick, and foam brick.

• Includes 51 mm core bit, 3 adapters, pilot drill, and hex wrench for quick setup


• Fits M16 internal thread systems and works with many standard drills and hammer drills


• Delivers fast, stable starts with the pilot drill for accurate positioning and smoother operation


• Resists heat buildup with carbon steel body and laser-welded construction for demanding drilling


• Handles reinforced concrete, brick, and masonry for HVAC, plumbing, railing, and construction tasks

When you need consistent core drilling without constant adjustments, this dry-use diamond core bit set keeps your cut centered and your edges cleaner. The precision-ground tooth design supports smooth cutting and helps reduce shifting during high-speed rotation. Keep it on hand for installation and renovation jobs where concrete and brick are common—ideal for service work and jobsite toolkits. Grab yours today and be ready for the next drilling task.

• Diameter: 51 mm / 2 in


• Max drilling depth: 241 mm / 9-1/2 in


• Thread: M16 internal


• Application: Dry


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


• Compatible machines: Drills, hammer drills


• Welding method: Laser welding


• Material: Carbon steel


• Product size: 270 x 50 x 50 mm / 10.63 x 1.97 x 1.97 in


• Net weight (with accessories): 1.30 kg / 2.87 lb