12" High Air Pressure Down The Hole DTH Button Bits

China 12" High Air Pressure Down The Hole DTH Button Bits, Find details about China Numa120 Drill Bit, Numa120 Button Bit from 12" High Air Pressure Down The Hole DTH Button Bits

Basic Info.

Model NO.

NUMA120

Technology

Themal Insert

Trademark

JEAO

Transport Package

Wooden Case

Specification

CE ISO

Origin

China

HS Code

84314320

Model NO.

NUMA120

Technology

Themal Insert

Trademark

JEAO

Transport Package

Wooden Case

Specification

CE ISO

Origin

China

HS Code

84314320

Product Desciption

Drill bit:1.Cemented carbide buttons
2.Reasonable designs
3.Three kinds of faces design
4.Certificate: ISO9001:2008, SONCAP

Application range: All kinds of rock formation.
Face design: flat, convex, concave
Inserts design: spherical, ballistic, parabolic
Features: 1.Reliable quality, long service life, rare abnormal breakage during service life.
2.Good flushing effect to ensure high drilling rate
3.Strict quality warranty and compensation rules
4.High penetration rate
5.Longer service life
Markets: Italy, France, Russia, Greece,Canada,Korea, Chile, Brazil, Nigeria, Mongolia and etc.
Examples For Ordinary Bits
Concave, spherical(other designs of faces and inserts are available)

12" Shank Bit	Bit Dia(mm)	Bit Dia (Inch)	Air Hose	Guage Button	Front Buttons	Part No
DHD1120	305	12"	4	12×φ18	35xφ16	DHD1120-305
	311	12 1/4"	4	12×φ18	35xφ16	DHD1120-311
	330	13"	4	16×φ18	42xφ16	DHD1120-330
	356	14"	4	16×φ19	48xφ16	DHD1120-356
	381	15"	4	16×φ19	48xφ18	DHD1120-381
SD12	305	12"	4	12×φ18	35xφ16	SD12-305
	311	12 1/4"	4	12×φ18	35xφ16	SD12-311
	330	13"	4	16×φ18	42xφ16	SD12-330
	356	14"	4	16×φ19	48xφ16	SD12-356
	381	15"	4	16×φ19	48xφ18	SD12-381
NUMA120	305	12"	4	12×φ18	36×φ16	NUMA120-305
	311	12 1/4"	4	12×φ18	36×φ16	NUMA120-311
	330	13"	4	16×φ18	42×φ16	NUMA120-330
	356	14"	4	16×φ19	48×φ16	NUMA120-356
	381	15"	4	16×φ19	48×φ18	NUMA120-381
NUMA125	305	12"	4	12×φ18	36×φ16	NUMA125-305
	311	12 1/4"	4	12×φ18	36×φ16	NUMA125-311
	330	13"	4	16×φ18	42×φ16	NUMA125-330
	356	14"	4	16×φ19	48×φ16	NUMA125-356
	381	15"	4	16×φ19	48×φ18	NUMA125-381