BOZONLI 200mm Connecting Rod SDS Adapter Plus Shank for Concrete Cement Wall Hole Saw Cutter Drill Bits

【Hole Saw Cutter】The wall drill bit is made of carbide tipped metal material,stable and durable,fast perforated in a long life. 【High quality】High-frequency welding technology, welding openings is very strong with smooth welding mouth inside and outside . 【Main function】Opening hole operation of wall and brick structure, such as adobe wall,mixed brick wall,cement wall,foam wall,red brick wall. Note: Do not use in steel, tile, and stone. 【Great for】Widely used for installing the air conditioner, oil fume exhauster and sewer pipeline hole open,ect. 【Buying Tips】Please note that the hole saw and the connecting rod are sold separately, A variety of sizes to choose from. suited for rotary hammer drill SDS-plus shank.