diamond concrete drill bit china

diamond concrete drill bit china Specifications

Hollow drill bit

T.C.T super tungsten carbide inserts
High speed, high efficiency etc.
Rail, bridge, ship, armor plate

When you want to drill holes on rail, bridge, ship or armor plate with dynamic equipment surrounding, please use hollow drill bit (magnetic drill bit).

diamond concrete drill bit china

These are unique characters that common twist drill bits don't own. Hollow drill bit is a series of special drilling and paring implement that designed and fabricated for railway repair and regular maintenance construction.

For more information,pls visit http://www.hhdiamondtools.com/Product/Product-2-1.html