18-83mm Wet Diamond Core Bit

Diamter: 18mm(23/32''), 20mm(25/32''), 22mm(7/8''), 25mm(1''), 27mm(1-1/16''), 30mm(1-3/16''),
32mm(1-1/4''), 36mm(1-13/32''), 38mm(1-1/2''), 40mm(1-9/16''), 44mm(1-3/4''), 46mm(1-13/16''),
51mm(2''), 56mm(2-3/16''), 63mm(2-15/32''), 66mm(2-19/32''), 71mm(2-13/16''), 76mm(3''), 83mm(3-1/4'')

Length: 14-9/16'' (370mm) Connector thread: M22 Thread note:must use with water Product Description Diamond core bit is used for construction install pipe, air conditioning, electric, heating, gas pipeline drill wall, And use highway, airport runway, bridge and tunnel engineering drilling. also can drilling Stone ceramic concrete with rebar