JESSIN ROCK DRILL CO LIMITED - Botswana

Button Bits has long blunt operation service life, and the grinding life of button bits is 4-5 times longer than that of blade bits with the same diameter. The button bits have the advantages of saving assistant labor hour, reducing physical work and accelerating job progress. Therefore, tapered button bits and threaded button bits with different diameters are widely used for drilling hard brittle rock by matching with jumbos. In Sweden engineers’ opinion, it is best matching plan in modern rock drilling technique that the button bits are matched with hydraulic jumbos

1. Down-the-Hole Button Bits

Down-the-Hole Button Bits are drill bits matched with Down-the-Hole hammers through splines, and widely used in surface drilling, rock quarries, power and water projects , Water well drilling, , side piling support drilling, etc. Down-the-Hole Button Bits are divided into low air pressure Down-the-Hole Button Bits and middle-high air pressure Down-the-Hole Button Bits. The Down-the-Hole Button Bits are matched with Down-the-Hole hammers and had the characteristics of hole straightness, high speed, and deep hole drilling. Therefore, the Down-the-Hole Button Bits are widely used.

Our products are produced according to 6480-2002> to make, also we have approved ISO9001:2000Quality System.

1) Taper Connection: 4° 6° 7° 11°12°.

2) Bit Diameter: 20-60mm.

3) Top class quality & competitive price available.

Packing: wooden case or plastic box or as per your own requests.

We can supply all kinds of rock drilling tools, bits and related products, the product mainly used in coaling ,metaling, quarrying, mining, construction and so on. Meanwhile, we could start production according to your supplied samples completely.

Tapered Button Bits:
High quality, cheap price.large quantity.

(1) Connect Size: Φ19, Φ22, Φ25 and etc.
(2) Diameter: D26-42mm.
(3) Tapered connection: 6 degree, 7 degree, 11 degree, 12 degree etc.
(4) Package: Wood case or Plastic box.
(5) Productivity: 60000pcs/ month.

Taper drill rod is used for rock drilling, blasting holes and other drilling works in the quarries, coal mines, traffic and other contractions. It works with taper drill bits and has different length for various applications, our taper drill rods come in a variety of taper angles, generally, the light duty rock drill usually use 7 taper or smaller taper angle, the heavy duty rock drill mainly use 11,12 taper angle. And the basic theory is that taper drill rods and taper drill bits must be in the same tapered degree. We provide tapered rods in a full range of shank configurations and steel hex diameters for hand-held pneumatic drilling needs.

(1)Steel grade: 55SiMnMo ,95CrMo equivalent to SANDBAR 20 or C253,
(2)Shank size: hex.22mm×108mm , hex.22mm×159mm,hex.22mm×80mm,hex.25mm×108mm. hex.25mm×159mm
(3)Taper:4.46,6,7 ,11,12 degree etc
(4)Length: 0.4m-10m
(5)Package: in wooden case or in bundles.
(6)Productivity: 50000MT / month

Thread button bits made with high quality of best quality alloy steel bar and tungsten carbides, through heat treatment so that it can withstand the toughest rock drilling demands,and transmit intensive impact energy into the rock with the least possible loss of energy

According to different drilling application, we have different design to meet customers with good quality and good price .No matter what kinds of rock-Soft rock, loose-medium rock, hard rock and any other special formations, just tell us what you need and leave others at our disposal, we will handle the following, our special Tailored service is waiting for you upon your demand.

(1)Thread: R22, R25, R28, R32, R35, R38, T38, T45, T51, ST58, T60

(2)Diameter: 38-127mm.

(3)Package: in wooden case or in carton.

(4)Productivity: 10000pcs/ month

Especially our ST58, GT60 Button Bit Retrac Bit, which is widely welcomed by our client with good quality and good price .

Because of economy and powerful drilling capacity, down the hole hammer become an advanced drilling tool for drilling and mining industries. Down the hole hammers and drill bits are designed together to work in perfect unison, giving high penetration rates, long service life and low costs.

1. Deliver maximum energy to drilling bit, fast drilling speed and low air consumption due to the special inner structure of HD series DTH hammer designed according to newest rock drilling theory.
2. Smooth performance and long service life of HD series DTH hammer due to high quality alloy steel materials and advanced processing technology adapted.
3. Low problem rate and easy to maintenance due to simple , reliable and easy assemble and disassemble inner structure of hammer.
4. Easy to depart bit from hammer due to multihead thread connecting chuck and cylinder of hammer.
5. Interchangeable with DTH bit and drill pipe
Low pressure and high pressure hammers are available in our company.


· Suitable for high pressure drilling rigs
· Water well drilling
· Record breaking penetration
· Bench drilling
· Exploring Civil Engineering Applications
· Lowest cost per foot drilled
· Mining /Mineral Exploration
· Simple & robust design
· Exploring Civil Engineering Applications
· Oil well drilling
· Foot Valve not required in the bit
· Longer parts life
· Maximizes efficiency
· Develops greater power for any compressor capacities
· Penetrate 15% to 30% faster
· Provides additional production at a lower unit cost

(1)Size: 90mm-605mm
(2)DTH Hammer: 3"-12"
(3)Package: in wooden case
(4)Productivity: 2000pcs/month

1) Condition: 100% new with original packing and documents

2) Manufacturer brand name: Feilong,Kingdream

3) The exact bit size: 13 1/2" =342.9 mm

4) IADC code: GA115 Milled Tooth

5) Seal type: O-Ring Sealed Bearing

6) Bearing type: Sealed Roller bearing

7) Nozzle quantity and nozzle size: 3 nozzles

8) Connection joint Pin size: 6-5/8"

9) Formation:Very soft with low compressive strength and high drill ability

Optional Information
- Payment : T/T
- Delivery : by sea or by air
- Origin : Hunan
- Minimum Order : 1 piece
- Packaging : plywood case
- Inspection : inner
- Samples : Charge
- Remarks : 100% new

Three cone bit is the important tool in oil drilling, whether its performance is good or bad will directly affect the quality of drilling, drilling efficiency and drilling cost. Three cone bit's design in the traditional is based on practical experience and combined with the method of trial and error, repeated design and calculation, so the accuracy of design is low, the cycle is long and it is difficult to improve the quality of design. And the design of each calculation can only be a bit and with low efficiency. Therefore, to develop a set of three teeth wheel drill bit CAD system and realize parametric drawing of three cone bit are very necessary.
Optional Information
- Payment : T/T
- Delivery : DHL,shipping
- Origin : Hunan
- Minimum Order : 1 piece per month
- Packaging : plywood case with belt
- Inspection : API
- Samples : Charge
- Remarks : Please feel free to contact me if any questions

Product Description
1.materal:carbide 2.Bit type: steel tooth/TCI bits 3.Processing type: forging 4.Formation: soft to hard formation 5.Size: all API size 6.Teeth type: insert button or milled tooth, saw tooth 7.Model number: center drill bits 8.Bearing: sealed bearing 9.Warranty:4 years 10.Iadc code:116-837
Product Feature
(1) Strong resistance to abrasion and impact resistance. (2) Cutter's quality performance is good , (3) long work life (4) stocks adequate, time delivery (5) rich experience in drill bit (6) good after-sales service (7) High quality, competitive price
Product Specification/Models
Specifications 1.Bit API&ISO 90012.Bit steel/TCI tooth bit3.Bit IADCYC5374.Bit high speed5.Bit high quality with good price
Application
Well Drilling,Well Drilling,gas,water and oil will drilling

1. Cutting structure is force balanced and bit blade is asymmetrically designed so that the load on bit is balanced that resulting better stability of the bit.
2. Main cutter are high performance PDC cutters to insure service life of the bit while improving ROP.
3. Cutter exposure is optimized to insure the oil bit can achieve higher ROP is soft to medium formations.
4. Hydraulic system of the bit is optimized using dynamic flow pattern simulation technology to enhance cleaning and cooling effects of the bit to effectively prevent bit from balling.
Optional Information
- Payment : T/T or L/C
- Delivery : according to the contract
- Packaging : according to customer's requirement
- Samples : Not Avaliable