Drilax Diamond 4 inch Concrete Hole Saw Masonry Core Drill Bit Heavy Duty for Brick, Cinder Block 3/8 inch Standard Shank Rotary Tools

4 Inch Masonry Hole Saw, Diamond Hole Saw, Heavy Duty Dry Core Hole Saw for Concrete Hole Saw Bit Brick, Cinder Block, Core Drill Guide Included Extra Long Depth of Cut

Refrigeration Technologies RT201B Nylog Gasket/Thread Sealant, 30 ml (1 Pack)

2.5 inch / 65mm Concrete Hole Saw with SDS Plus Shank Connecting Rod,Concrete Drill Bit,6.3mm Tungsten Carbide Tip Cement Hole Saw for Concrete Cement Brick Wall (65mm (2.5 inch))