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Down Hole Button Bit

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Down Hole Button Bit photo-3
Down Hole Button Bit photo-4
US$ 1 - 60 MOQ: 20 Pieces
Key Specifications
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Place of Origin:
Henan, China
Brand Name:
ZM
Model Number:
made to order
Contact Supplier Request Quote Chat Now
Henan Zhongmei Drill Tool Co., Ltd.
Payment & Shipping
Payment Methods:
Port of Shipment:
Qingdao Shenzhen etc.
Delivery Detail:
Delivery time depends on order quantity.

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Place of Origin Henan, China
Brand Name ZM
Model Number made to order
Type Drill Bit
Machine Type Drilling Tool
Certification Other, ISO9001
Material Carbide
Processing Type Forging
Use Coal Mining

down hole  button bit

Bit Diameter
 
Carbide
Taper
Water
Part No.
Mm
inch
Width*Height
Hole
30
1 3/16
8—10*13.5—15
7
2
CH130-722
32
1 17/64
8—10*13.5—15
7
2
CH 132-722
34
1 11/32
8—10*13.5—15
7
2
CH 134-722
36
1 27/64
8—10*13.5—15
7
2
CH 136-722
38
1 1/2
8—10*13.5—15
7
2
CH 138-723
40
1 37/64
8—10*13.5—15
7
2
CH 140-723
42
1 21/32
8—10*13.5—15
7
2
CH 142-723
20
2 5/32
6*12
4
1
CH 220-415
22
5 5/64
6*12
4
1
CH 222-415
24
1 5/16
8*13
4
2
CH 224-415
26
1 1/32
8—10*13.5—15
4
2
CH 226-415
28
1 7/64
8—10*13.5—15
6
2
CH 228-722
30
1 3/16
8—10*13.5—15
7
2
CH 230-722
32
1 17/64
8—10*13.5—15
7
2
CH 232-722
34
1 11/32
8—10*13.5—15
7
2
CH 234-722
36
1 27/64
8—10*13.5—15
7
2
CH 236-723
38
1 1/2
8—10*13.5—15
7
2
CH 238-723
40
1 37/64
8—10*13.5—15
7
2
CH 240-723
42
1 21/32
8—10*13.5—15
7
2
CH 242-723
50
1 31/32
8—10*13.5—15
7
2
CH 250-725
56
2 13/64
8—10*13.5—15
7
2
CH 256-725
60
2 23/64
8—10*13.5—15
7
2
CH 260-725

Specification:

Button bit-face design: Flat face, drop centre, tungsten carbide hemispherical and ballistic. Normal and retrac body.Couplings sleeve- manufactured with a middle stop to prevent walking along the thread. Include couplings sleeve. Shank adaptors - carburized and manufactured with tight tolerances and controlled straightness.

characteristic:

Button bits with 6tips, 7tips, 8tips 

Different rock formations and rock drills require different taper angles. When drilling with high impact hydraulic rock drills in medium-hard to hard and abrasive rock formations, a wide  angle is normally used. Taper angles of 11 and 12-degrees are always used on modern drill rigs. For low impact rock drills and softer rock formations, and a narrow taper angle of seven degrees is used of. A 7-degree angle can also be used if button bit spinning is a problem when using 11 and 12-degree equipment. In addition, a 4,46 degree angle is ideal for soft rock when you're using pneumatic or hydraulic drill rigs - to prevent bits from spinning or becoming detached.

down hole button bit

 

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Henan Zhongmei Drill Tool Co., Ltd.
Business Type
Manufacturer, Trading Company
Year Established
2007
Factory Size
5,000-10,000 square meters
Total Employees
101 - 200 People
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