Two Wings PDC Tungsten Carbide Mining Coal Mine Auger Drill Bits Coal Auger Bits

Type

D(mm)

Tips Shape

d(mm)

JLCAB 38-12

38

Straight

12

Inclined

Short

JLCAB42-12

42

Straight

Inclined

Short

Grade

Density 
g/cm3

Hardness 
HRA

Strength 
N/mm2 Min.

Applications

YG4C

15.0~ 15.2

90

1900

For geological exploration, coal excavation, inlayed bits; Good to drill the medium hard sandstone, the soft-hard alternant rock.

YG8C

14.6~ 14.8

88.5

2300

For rotary-percussive rock drill bits for medium hard and hard rock; and also for cutter teeth and oil drill bits for cutting hard stone containing formations.

YG9C

14.45~14.65

88.2

2500

For mining tips, button of rotary-percussive bits, also for button of Mining purpose cone drill, for soft and medium hard rock.

YG10C

14.35~14.55

87.7

2600

For mining tips, button of rotary-percussive bits, also for button of Mining purpose cone drill, for medium hard and hard rock.

YG11C

14.20~14.4

87

2600

For tipping of bits for heavy rock drills and rotary-percussive rock drills used in hard rock formations; e.g.: latent hole drills and deep-hole drills, rock drills, etc.

YG13C

14.05~14.25

86.7

2700

For oil cone drills for hard and medium hard rock; also for tipping bits of rotary-percussive rock drills and heavy rock drills.

YG15

13.95~14.15

88

2300

Top strength and less wear resistance, for bits of rotary-percussive rock drills and heavy rock drills, for hard and very hard rocks.

YG15C

13.9~14.1

85.7

2700

For cone drills for any kind of rock formations.