4-1/2" x 22" ONE PIECE Carbide Core Drill. The perfect size for radon mitigation work. Cuts hundreds of holes in high strength and HPC concrete. This system works great for confined areas. Also no water is needed when using this concrete coring system..
Premium micro-grain diamond carbide for super fast dry coring of concrete, cement, asphalt, brick, block and all lapidary. Great for soil testing, radon mitigation and professional applications. The best dry coring bit in it's class. Made in Germany.