Set of 4 Pro Plus Ultra Premium Diamond Core Drill Boring Bits

	
Cut the Hardest Materials: Hard Concrete, Cured Concrete, Reinforced Concrete, Concrete Block, Brick
	
4 Piece (1", 2", 3", 4")
	
1 1/4 -7 UNC Female thread Shaft(Arbor)
	
17" Overall Length 14" Long Barrel Length
	
Built for Pros who need the highest quality
	
High Segment (Diamond Height) Premium Synthetic Diamonds