down the hole bits

0mm -35mm Back Margin Hole Puncher Machine With Hollowed Punching Bits<span style="font-size

1. Suitable for precise centering drilling with high machining accuracy
2. Made of emery, sharp and durable

1.TCI & steel tooth available.
2.Metal seal & O-ring seal available.
3.220-1600mm dia. available.
4.Certified by:ISO9001-2008 and GB/T19001-2008.

36 mm Dry Diamond Core Drill Bits / Core Hole Drill Bits Professional
 
 
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1. Bit cones (segment) are spited from tricone bits and welded to build a new bit.
2. The advantage of this series of bits is that it can be made

Taper bit as small hole bit is different with thread button bit as long hole bit to use taper match with bit with rod to be used for air leg or hand h

Reamer bit, hole opener .
1.Bit cones are spited from tricone bits
2.suitable for different complexes formation

The drill is used in combination with the drill hammer, which has the characteristics of straight drilling, fast speed and deep drilling.

1.Structure:Deep Hole Drilling
2.Precision:Normal Precision
3.Outside Diameter Mm:42-200
4.Thread Type:T & R
5.Strict quality control

Diamond Core Drill Bits, Diamond Hole Saws

Alloy Blind Hole Range Carbide Drill Bits /  Wood Working Drill Bits For Row Drilling Machines
 
 

 
Custom 3 Inch 4 Inch R32 Reamer Drill Bit Hole Cutting Drill Bit
 
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Custom 3 Inch 4 Inch R32 Reamer Drill Bit Hole Cutting Drill Bit
 
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Custom 3 Inch 4 Inch R32 Reamer Drill Bit Hole Cutting Drill Bit
 
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18" Hole Opener Reamer Bit HDD,Drill Bits

1.TCI & steel tooth available.
2.Metal seal & O-ring seal available.
3.220-1600mm dia. available.
4.Certified by:ISO9001-2008 and GB/T19001-2008.

Usage & Application:
1)For oil drilling
2)For gas drilling
3)For mining bits
4)For coal drilling...

Steel Body PDC
Use high-quality steel to make the base material of PDC bit, the surface of the blade weld high-performance
wear-resistant materials,

1.Reamer bits for soft,hard rock
2.Size:up to 1700mm
3.Certified by ISO,API
4.High quality best price
5.Timely deliver

Reamer bit, hole opener bit, piling bit
1. Used in construction and foundation
2. Very large customized diameter .

ChinShine - China Professional Diamond Core Drill Bits Manufacturer & Designer on Diamond Core Drills from 0.1" to 48" diameter. We have been cooper

The eccentric bit is used for the expansion of depth or easy shrinkage hole section under extended casing.low speed, low feed pressure

Specifications
1. Available in all standard drilling sizes (A, B, N, H and P).
2. Various crown height an

Paper Hole Drill bits with H type smooth inner wall and Tempered body Dia. 3 to 8mm
Different dia. available from dia. 3mm to 10mm</

 
110mm, 150mm OD DTH Button Bits Rock Drilling Tool With 15 Buttons, 6 Splines, 3 Water Hole
&nbs

Power Tools Hdd Bits 28 Inch Hole Rock Reamer Drilling

1, Fetures
1). High quality material from Valin Group
2). Guaranteed welding process(full welding)
3). O

1.Factory, specializing in manufacturing mining cutter bits for more than 6 years.
2.High performance

1. Bit cones (segment) are spited from tricone bits and welded to build a new bit.
2. The advantage of this series of bits is that it can be made

Sintered diamond thin wall hole saw for glass ceramic core drill bit China made abrasive tools