CPROSP 1¼ Inch UNC Diamond Drill Bit with SDS MAX Adapter, Core Drill Bit Diameter 82 mm, L 420 mm, Core Drill for Drilling in Concrete, Reinforced Concrete, Masonry and Stone

• With SDS MAX Adapter: This adapter converts 1 1/4" UNC into SDS MAX. Suitable for all hammer drills with SDS-MAX mount. Made of 45 steel, stable and durable, not easy to break. For use with core drills, UNC thread with SDS MAX shank. Please check before purchase whether the connector is compatible. Please note: this is SDS Max, not SDS PLUS!!! This adapter cannot be used with hammer mode.
• Product parameters: diameter: 82 mm; total length: 420 mm; working length: 370 mm; teeth: 7; (Please note: pilot drill is not included)
• Compatible equipment: hand core drill and core drilling rigs. (Please note: do not use with electric hammer and hammer drill)
• Notes: Water must be added continuously during use. When using the water drill extension, you should tilt the drill bit first to make a mark on the work surface, and then put the drill in a horizontal position to continue drilling
• Scene Use: For drilling in concrete, reinforced concrete, masonry and stone.

This product is suitable for building, water, electricity, gas, air conditioning and pipe installation through holes in the wall. Recommended Use: Diameter 68 mm: 2-5P climate cabinet pipe. Diameter: 82 mm. Diameter 110 mm: laying of waste water, extinguishing water pipe or wire box. Precautions for use: Install drill bit: first check whether the spindle is swinging, whether the electrical and mechanical parts are in order, and when installing, make sure that the drill is clamped and held centrally with the drill. Rhinestone: water must be added continuously during use. It is used in drilling and core technology. It is recommended to use stationary or hand-held drilling equipment. Warm Tips When using the water drill extension, you should tilt the drill bit first to make a mark on the work surface, and then put the drill in a horizontal position to continue drilling. This ensures accurate and efficient drilling. Please follow this procedure to achieve a good result.