Diamond core bits

three type core bits: Single type, assembly type, and core bits with vents.

Tube Length from 35mm to 450mm,pleases specify when ordering.

Segment on the core bits can be crown or split segment(Normal Type,Turbo Type,Roof Type).

The size is from 1" to 14".

Core bits can use to drill various range of materials including masonry, bricks, concrete blocks, reinforced concrete, ect.