hand rock drill

Processing type: forging
Material: YK05 + alloy steel
Bit face shape: flat stanard, dome standard, flat retrac, dropcenter retrac

API 5 7/8" TCI tricone bit
1.Inserted teeth bit
2.Medium formation use
3.Metal sealed journal bearing
4.Gauge protection

Our drill bit can transmit intensive impact energy into the rock with the least loss of energy, which can help you improve efficiency and reduce costs

Down the hole rock drill bits
1. Material:Carbide tip
2.Working pressure : 0.5~0.7Mpa ( Low pressure)
3.Drill diameter range : 65mm ~253mm
4.5 fa

JiNing Shengdu Pneumatic Breaker Tools Co., Ltd.is a modern corporation which develops, manufacture and sell the equipment .

roller cone bits
1.long service time
2. well drilling
3.best price and high quality
4.we can provide the sample ,but customer need to pay all.....

Tungsten carbide insert bit of high strength and toughness is to increase the impact resistance of cutter and decrease the breakage rate.

1.Size from 3 7/8" to 26"
2Covers almost all IADC code.
3Stocks adequate&timely delivery
4Good quality and after-sale service

1 Self drilling anchor bolt & self drilling rock bolt
2 R /T thread
3 left/right hand thread
4 R25N --T76S
5 Customized

YT24 differs from similar products particularly in its high efficiency, strong flushing and powerful torque. Energy-saving and efficient, long service

API 5 7/8" TCI tricone bit
1.Inserted teeth bit
2.Medium formation use
3.Metal sealed journal bearing
4.Gauge protection

YT28 air leg rock drill
1. A kind of high efficiency air leg rock drill machine
2. use for gold mine, tunnel,railway,pavement breaking

Pneumatic rock drill is suitable for drill level or gradient holes in medium hard or hard rock. It is a high efficiency air leg rock drill machine.

1.Diameter:85mm-555mm
2.DTH Hammer: 3"-12"
3.Splines:4-10
4.Package :in carton
5.Supply ability:2000pcs/month....

Tapered drill rod, another name called taper rod.This provides a hexagonal chuck section to provide leverage for the rotation chuck bushing.

1 Self drilling anchor bolt & tunneling rock bolt
2 R /T thread
3 left/right hand thread
4 R25N --T76S
5 Customized

1.High temperature and wear resistance, fast drilling rate
2.IADC code suitable for different formation
3.Sizes range from 3 7/8" to 26".

Matrix body PDC bit
1.best price and high quality
2.5 blade count
3.7 nozzles
4.Spiral blades...

1.Drilling process must operate smoothly,
2.find that there is Bie jump on abnormal phenomenon
3. be timely analysis and take effective measure

API 5 7/8" TCI tricone bit
1.Inserted teeth bit
2.Medium formation use
3.Metal sealed journal bearing
4.Gauge protection

chinacoal05
YN27A Petrol Rock Drills , YN27A hand held rock drill
YN27A Hand Held Petrol Rock Drill

Pneumatic rock drill is suitable for drill level or gradient holes in medium hard or hard rock. It is a high efficiency air leg rock drill machine.

which is suitable for drilling in soft to medium hard stratum, and has better advantages in overcoming incomplete stratum drilling

Y26 Rock Drill is widely used for drilling in the medium-hard and hard rock(f=8-18). It's suitable for downward drilling works in surface mine, qua

Specifications
TCI tricone bit
1.size range from 3 7/8" to 26"
2.Covers almost all IADC code.
3.Meet with API Spec7-1 Standard

rock thread button drill bits
1.material:Steel Carbide
2.Production experience :40years
3.Diameter:38-127mm
4.Button bit shape:Spherical and Ball

Suited to work on high mountains, plains, hot and cold area with no power and no water supply and air compressing equipments.

It is mainly used for blasting holes and other drilling works in quarries, railway construction,water conservancy construction and defence project fac

1.YT27 Atlas Copco Rock Drill,Hand Rock Drill
2.Approved:CE,MA,ISO9001
3.Use:mining and tunnel for rock drilling work

Fit for wet drilling in medium-hard or hard rock.