supply diamond core drill bits, suitable for reinforced concrete drilling.
OD 25-80mm, length 95/145mm, 2 or 3 grooved, wall thickness 2-2.5mm, threaded M16,
material steel 20c,
forged steel base,
sintered diamond segments
Or processing according to supplied drawings or samples.
Our factory was certificated by ISO9001:2000.
Should you have any requirement, please feel free to contact us.