1" Zig-Zag Turbo Wet Core Bit, Paragon Diamond Tools, Mfr#: CBWZZ1

1" Zig-Zag Turbo Wet Core Bit; Our Zig-Zag wet diamond core bits feature fast cutting turbo segments with alternating (zig-zag) inner and outer points of contact for a sure grip when starting to drill a hole.