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12 Inch Down The Hole DHD1120 SD12 Numa120 Numa125 DTH Drill Bits for Big Hole Rock Drilling Water well Drilling

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12 Inch Down The Hole DHD1120 SD12 Numa120 Numa125 DTH Drill Bits for Big Hole Rock Drilling Water well Drilling

Bestlink company makes and supplies the finest and most efficient Down-the-Hole (DTH) hammers and bits for the mining, construction and water well industries.
Drill and blast engineers and water well contractors trust Bestlink's DTH equipment because of the precision engineering and high standards of drilling efficiency built into each of our hammers and bits.

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Model: 12 Inch Large Hole Mining and Well Drilling DTH Button Bit
Brand: Bestlink

Product Description

12 Inch Down The Hole DHD1120 SD12 Numa120 Numa125 DTH Drill Bits for Big Hole Rock Drilling Water well Drilling

Bestlink company makes and supplies the finest and most efficient Down-the-Hole (DTH) hammers and bits for the mining, construction and water well industries.

Drill and blast engineers and water well contractors trust Bestlink's DTH equipment because of the precision engineering and high standards of drilling efficiency built into each of our hammers and bits.

dth hammer bit

drilling tools button bit

We can design and manufacture according to customer's requirement of the Bit Diameter、No. air holes、carbide button shape and the face shape.

Drill Bit	Bit Dia.(mm)	NO.Air Holes	Gauge Buttons	Front Buttons	Weight(Kg)
DHD1120	305	4	12*Φ18	36*Φ16	152
	311	4	12*Φ18	36*Φ16	157
	330	4	16*Φ18	42*Φ16	165
	356	4	16*Φ19	42*Φ16	178
	381	4	16*Φ19	42*Φ18	198
SD12	305	4	12*Φ18	36*Φ16	156
	311	4	12*Φ18	36*Φ16	168
	330	4	16*Φ18	42*Φ16	180
	356	4	16*Φ19	48*Φ16	191
	381	4	16*Φ19	48*Φ18	200
NUMA120	305	4	12*Φ18	36*Φ16	152
	311	4	12*Φ18	36*Φ16	158
	330	4	16*Φ18	42*Φ16	165
	356	4	16*Φ19	48*Φ16	178
	381	4	16*Φ19	48*Φ18	195
NUMA125	305	4	12*Φ18	36*Φ16	170
	311	4	12*Φ18	36*Φ16	173
	330	4	16*Φ18	42*Φ16	182
	356	4	16*Φ19	48*Φ16	191
	381	4	16*Φ19	48*Φ18	200