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Threaded bits T38-76mm Button bit, flat face and dome Nine buttons, three front

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Threaded bits T38-76mm Button bit, flat face and dome Nine buttons, three front

Brand Name : Legend Drill
Model Number : retrac button bit
Certification : SGS
Place of Origin : China
MOQ : 1 piece
Price : Negotiable
Payment Terms : T/T west union L/C, D/A, D/P, Western Union, MoneyGram
Delivery Time : 10-15 days
Packaging Details : wood package
Product Name : T38 T45 T51 GT60 ST68 Thread Button Bits
Special design : Guide bit with short guide wings
Bit face : FF, DC, Concave, Convex
Face Shape : Flat, Drop Center
Bit head design : Nine buttons, three front flushing holes
Body Design : Sandvik Retrac Body Shape, Atlas Retrac Body Shape
Bit type : Button bit, flat face and dome
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Threaded bits T38-76mm Button bit, flat face and dome Nine buttons, three front flushing holes

Description:


1. Body wash

RECOMMENDED ACTION

(1).Check to ensure that maximum available

flushing is employed. If bailing appears

to be inadequate, try cleaning holes

thoroughly after drilling each steel length.

Continued drilling with poor bailing will

wear bit bodies excessively


(2)Do not use new bits in these

applications. Use bits approaching the

end of their usable life. Bits with missing

buttons unsuitable for regular drilling can

still be suitable for soft or broken ground

conditions

2. Split skirt

(1)Do not engage percussion until bit is

seated on rod

(2)Loosen bit while seated firmly on face or

at bottom of the hole

3. Wring off

(1)Apply minimal amount of hammer

pressure to free bit before increasing

rotation pressures

(2)Inspect thread socket for pitting and rust

(3)Loosen bit while seated firmly on face or

at bottom of the hole



Applications:


  1. In the past ten years, the research and development and production of medium and high wind pressure down-hole drilling tools in China have made great progress, and the product market has spread all over the world.
  2. It has become one of the fastest developing tools after the top hammer type. However, with the development of the air compressor to the high pressure, the service life of the down-the-hole drilling tool is put forward higher.
  3. At the same time, with the downturn of the mining industry, the user has lowered the construction cost and proposed the drilling efficiency of the down-hole drilling. High requirements, therefore, design and development to meet the market demand, lightweight, efficient, energy-saving and durable down-the-hole drilling tools become mainstream.


Feature Advantage:
Source:It is a series of Thread bit developed and produced by the LEGEND DRILL
3.Shank type :With a T38 rod .the total weight is 2.6kg.
4.The shape of the Carbide button shape gauge buttons and front buttons both is sharp buttons .The sharp button are usually used as front buttons of DTH bits for soft formations,suitable for high rotation speed and low bit broken rate soft rock.The quantity is 8 and 4 respectively,and the button size both is diameter 11mm.
5.Face type :Bit face designs is flat face,This kind of face shape is suitable for hard to very hard and abrasive rock formations in applications with high air pressures,Good penetration rates an resistance to steel wash.There are 3 air holes.



Specifications:

Dia.(Mm)Thread ConnectionButtonsAir HolesWeight(Kg)
GaugeFront
51r324×112×9121.00
64r326×123×11311.70
64t386×123×10121.70
76t387×124×10313.00
76t458×116×104-3.00
78t388×115×114-3.10
89r328×126×114-3.50
89r388×126×114-3.50
89t458×126×114-3.50
89t518×126×114-4.50
102t458×146×134-5.50
102t518×146×134-5.50
105r388×146×134-4.50
115r388×147×134-4.80
115t518×147×134-4.80
125r388×148×134-5.50
127t518×148×134-6.50


Product photos :


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Threaded bits T38-76mm Button bit, flat face and dome Nine buttons, three front Images

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