5pcs Drill bits set

FOB Reference Price:Get Latest Price
US $5-16 / Set | 50 Set/Sets (Min. Order)
Supply Ability:
10000 Piece/Pieces per Month
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Quick Details
Place of Origin:
Zhejiang, China (Mainland)
Brand Name:
Model Number:
Core Drill Bit
Masonry Drilling
key word:
diamond drilling bits
Packaging & Delivery
Packaging Details
Each blade is packed in a white box ,10 boxes into one carton
Delivery Time
15 work days


1.diamond oil drilling bits used in brick,wall,cured concrete etc
2.MPA and ISO9001
3.USed in 2008 Olympic game and goverment

Diamond drilling bits

A core drill is a drill specifically designed to remove a cylinder of material, much like a hole saw. The material left inside the drill bit is referred to as the core.


Core drills are used for many applications, either where the core needs to be preserved (the drilling apparatus used in obtaining a core sample is often referred to as a corer), or where drilling can be done more rapidly since much less material needs to be removed than with a standard bit. This is the reason that diamond-tipped core drills are commonly used in construction to create holes for pipes, manholes, and other large-diameter penetrations in concrete or stone.


Core drills are used frequently in mineral exploration where the coring may be several hundred to several thousand feet in length. The core samples are recovered and examined by geologists for mineral percentages and stratigraphic contact points. This gives exploration companies the information necessary to begin or abandon mining operations in a particular area.