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Tungsten Carbide Cross Drill Bit for Marble Stone Limestone

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Rock drill Cross bit is made from grade hard alloy and special steel, generally matched with the lightduty rock drill, to drill the rock hole within diameter of 45mm. is widely used in metallurgy mine geological exploration, water conservancy construction, electricity, traffic,tunnel, quarry,national defence stone project etc.

  • Cross Drill Bit
  • Kingkong Drills
  • tapered Cross Bit
  • Cross Rock Drill Bit
  • Cross, X
  • 7degree,11degree,12degree
  • Drill rock, Marble Stone, limestone
  • 22x82mm, 22x108mm, 25x108mm, 25x159mm
  • Tungsten carbide and high strength alloy steel

Compared with taper chisel bits, taper cross bits have a better drilling performance because carbide tips on cross bits doubled, which means carbides shape are cross type on drill bits. Taper cross bit is mainly used for hard or very hard rock formation.

Tapered cross bits are suitable for mining of black metal mines(such as iron mine, manganese etc), nonferrous metal mine(such as gold, silver, copper etc), marble and granite etc.


1) Tapered connection: 7,11,12

2) Chisel bit diameter: 28-60mm 

3) Technology:hot-pressing or welding

4) Bit Body: Short skirt and Long skirt

5) Tapered drill rod: H22/H25*108mm


It is widely used in drilling holes with a depth size less than 5 meters and diameter scope in 20-45 mm by light-duty hand hold drills, like Y6, Y10, Y24, major use in natural dimensional stone quarry for small hole drilling, block's trimming and 2nd splitting for small blocks. To match Hexagonal 22 mm and Hexagonal 12 mm’s tapered drill steel with 4/6/7/11/12 degree.


Parameters of cross bit                                             

  Drill diameter

    Taper(°)  

Drill diameter

    Taper(°)    

 (mm)

(in)

 (mm)

(in)

 28

1  3/32

 6,7

 45

1 3/4

 6,7,11,12

 30

1  3/16

 6,7

 50

1 31/32

 6,7,11,12

 32

1 1/4

 6,7,11,12

 60

2 3/8

 6,7,11,12

 34

1 11/32

 6,7,11,12

 76

3

 6,7,11,12

 35

1  3/8

 6,7,11,12

 89

3 1/2

 6,7,11,12

 36

1 13/32

 6,7,11,12

 102

4

 6,7,11,12

 38

1  1/2

 6,7,11,12

115 

4 1/2

6,7,11,12 

40

1  9/16

6,7,11,12

127

5

6,7,11,12

41

1 5/8

6,7,11,12

140

5 1/2

6,7,11,12

42

1 21/32

6,7,11,12

152

6

6,7,11,12

43

1 11/16





Ps: We can also design all kinds of Alloy Bore Bit according to your requirements.


Picture of Cross bit in production

cross drill bits3

cross drill bits0cross drill bits1cross drill bits2

Application

Suitable for small hole range

Widely used in Dimensional Stone Quarrying Industry

Widely used in Underground Mining Industry


Contact Amy Zhang for more details

Email: amy@kingkongdrills.com

Mobile: +86 13907256175 (Wechat/Whatsapp/Skype) 



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