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			 What kind of drill bit do people use for this -masonry bit ? 
		
	
		
		
		
		
			
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	-Mark 29 Gal Bowfront w/24" LED Lights. DIY HOB Sump (5.4 Gal) MP40. Orange Spotted Watchman Goby, 2 Clownfish and a few hermits.  |