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3-1/2 Inch Professional Quality, Fast Drilling ,For Wet/Dry Drilling Concrete, Asphalt, Stone Brick, Reinforced Concrete and Hard Masonry.

Laser wielded
Standard Segment height: 10mm (0.394”)
All bits are 17” long to produce 12” core.
Bits 5/8” to 1-1/2 are threaded for a 5/8"-11 adapter
Bits1-3/4”and larger are threaded for a 1 1/4"-7 adapter.
Applications: Brick, Concrete Block, Granite, Hard Concrete, Reinforced Concrete, Hard Masonry.
Equipment: Core Drill or Core Rig.