Product name: Diameter 250mm low air pressure DTH button bit CIR170 shank for construction
Product category: DTH drill tools
Matched hammer: Hammer CIR170
Diameter: 250mm

KINGDRILLING DTH button bit description:

KINGDRILLING hammer bits are used with Down-the-hole hammers for drilling holes through a wide range of rocks types. In conjunction with DTH hammers, drill hammer bits are designed with a spline drive for rotating the bit in the ground. Drill bits are available in different sizes and different styles so they can drill a wide range of hole sizes. Our variety of Down the Hole (DTH) bits is manufactured using high quality materials to provide you with a fine balance between penetration capability and bit life.

KINGDRILLING Low air pressure DTH button bit shank technical parameters:

Drill Bit	Bit Dia.(mm)	Bit Dia (Inch)	Gauge Buttons	Spline Num.	Shank
	50	1 31/32	3×φ10	4	CIR50
	55	2 5/32	3×φ10	4	CIR50
	60	2 23/64	3×φ12	4	CIR60
	65	2 9/16	4×φ12	4	CIR65
	76	3	5×φ12	4	CIR70
	90	3 35/64	6×φ14	6	CIR90
	100	3 15/16	6×φ14	6	CIR90
	105	4 1/8	6×φ14	6	CIR90
	110	4 21/64	6×φ14	6	CIR90
	120	4 23/32	6×φ14	6	CIR90
	130	5 1/8	7×φ14	6	CIR90
	110	4 21/64	6×φ14	6	CIR110
	120	4 23/32	6×φ14	6	CIR110
	125	4 59/64	7×φ14	6	CIR110
	130	5 1/8	7×φ14	6	CIR110/CIR130
	140	5 33/64	8×φ14	6	CIR110/CIR130
	150	5 29/32	8×φ14	6	CIR110/CIR130
	150	5 29/32	9×φ16	6	CIR150
	165	6 1/2	9×φ16	6	CIR150
	175	6 57/64	9×φ16	6	CIR150
	185	7 9/32	9×φ16	6	CIR150
	200	7 7/8	9×φ16	6	CIR150
	175	6 57/64	9×φ16	6	CIR170
	185	7 9/32	9×φ16	6	CIR170
	200	7 7/8	9×φ16	6	CIR170
	220	8 21/32	12×φ16	6	CIR170
	250	9 27/32	12×φ16	6	CIR170

Order Guide: Shank+ Head diameter+Face design+Button shape

Kingdrilling DTH bit feature:
1. Available with all major drill bit shank designs

2. Three drill bit face designs: concave, flat, convex

3. Multiple carbide designs and grades for operation in a variety of ground conditions

4. Proprietary heat-treatment process for superior hardness and wear resistance

5. Regional manufacturing for lower lead times

Kingdrilling rock drill tools application:

1. Mining and quarrying drilling

2. Mining exploration drilling

3. Piling and foundation drilling

4. Water well drilling

5. Geothermal drilling

6. Horizontal directional drilling

FAQ:

1. What is button bit?

Button bits, or roller cones, have rotating cones that contain tungsten carbide inserts. Tricone, or three cone bits, are the most common; however, manufacturers continue to make two cone and one cone bits.

2. How do you drill through boulders?

Apply moderate pressure to the drill, and drill for one minute. Don't force the bit into the boulder; let the drill do the work. Remove the bit from the hole, and cool it in the pitcher of water. Lightly spray the boulder with water to remove dust and to cool the rock.

3. How about the common packing?

A: If there is no special packing demand, we will take it as our normal packing. First in small carton, and then put in the bigger carton together to make sure goods completed.

4. How to check the product are the exact one you want?

A: If possible, please attach one reference picture to avoid any misunderstanding or any links from our website for a better understanding.

5. How to choose the suitable head face of the DTH drill bit?

Concave:

Suitable for all kinds of formation, especially for deep well drilling, perpendicularity of the hole is wonderful.

Convex:

Suitable for the formation of moderate hardness stratum, drilling efficiency is good, borehole perpendicularity is moderate.

Flat:

Suitable for special hard formation stratum, especially for fracture, crack spacing and complex formation drilling effect is very good, has the good perpendicularity of the borehole.

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