DHD350r Down The Hole Rock Drill Bit

• Customization: Available
• Customized: Customized
• Type: Center Drill Bit
• Model NO.: DHD350R
• Usage: Masonry Drilling
• Color: Blue
• Application: Down The Hole Drilling. Coal Mining
• Brand: Bestlink
• Model: DHD350r
• Transport Package: Plywood
• Specification: CE
• Trademark: BESTLINK
• Origin: Xiamen, China
• HS Code: 82071990
• Production Capacity: 10000PCS/Month

Product Description

1. High and low air pressure down-the-hole drill bits
2. Low air pressure holeDia.: 65-220mm

3. High air pressure hole Dia.: 85-305mm

4. Face type: Drop center/concave/convex/double gauge/flat

5. Our DTH Bit can be suitable for many types of DTH Hammer, such as XL, Mission, COP, IR, Mach, Demag, SD, Bulroc, Halco Mach, Digger etc.

About Us:
1. Our factory has been specialized in manufacturing drilling tools and spare parts since 1980.
2. We have advanced technology and equipment.
3. Our technician has more than 25 year's professional working experience.
4. Rock drilling tools are exported throughout the world. Main market: Norway, Turkey, USA,
Canada, Australia, Brazil, Uruguay, Iran, Philippines, Thailand, India, etc.

Some BITS for referance
Hammer: COP 32
Diameter mm	Part No.	Buttons x Button diam(Gauge outer, Gauge inner, Centre, Cone)	Gauge buttons angle o (Outer, Inner, Cone)	Flushing holes (No. x size mm)	Weight approx. kg	Foot valve Part No.
Flat front, HD
85	100-5085-39,24-20	8x11, - ,6x11, -	35, -, -	2	4.5
90	100-5090-39,24-20	8x11, - ,7x11, -	35, -, -	2	4.7
100	100-5100-39,24-20	8x11, - ,7x11, -	35, -, -	2	4.9
SpeedBit
85	100-5085-39-55,24-20	8x11, - ,6x11, -	35	2	4.5
90	100-5090-39-55,24-20	8x11, - ,7x11, -	35	2	4.7
100	100-5100-39-55,24-20	8x11, - ,7x11, -	35	2	4.9
Convex front, Ballistic
85	100-5085-39-61,24-20	7x11, 4x11, 2x11, -	40, 20, -	2	4.3
90	100-5090-39-61,24-20	7x11, 4x11, 2x11, -	40, 20, -	2	4.5
100	100-5100-39-61,24-20	7x11, 4x11, 2x11, -	40, 20, -	2	4.7
Hammer: Bulroc 3
Diameter mm	Part No.	Buttons x Button diam(Gauge outer, Gauge inner, Centre, Cone)	Gauge buttons angle o (Outer, Inner, Cone)	Flushing holes (No. x size mm)	Weight approx. kg	Foot valve Part No.
Convex front, Ballistic
	100-5090-45-61,24-20	7x11, 4x11, 2x11, -	40, 20, -	2	4
Hammer: COP 34, 34Q
Diameter mm	Part No.	Buttons x Button diam(Gauge outer, Gauge inner, Centre, Cone)	Gauge buttons angle o (Outer, Inner, Cone)	Flushing holes (No. x size mm)	Weight approx. kg	Foot valve Part No.
Flat front, HD
90	100-5090-31,24-20*	8x12.7, - ,7x11, -	35, - , -	2	5.8	9279
92	100-5092-31,24-20	8x12.7, - ,7x11, -	35, - , -	2	5.8	9279
95	100-5095-31,24-20	8x12.7, - ,7x11, -	35, - , -	2	5.9	9279
100	100-5100-31,24-20	8x12.7, - ,7x12.7, -	35, - , -	2	6.1	9279
105	100-5105-31,24-20	8x14.5, - ,7x12.7, -	35, - , -	2	6.3	9279
SpeedBit
92	100-5092-31-55,24-20	8x12.7, - ,7x11, -	35	2	5.8	9279
95	100-5095-31-55,24-20	8x12.7, - ,7x11, -	35	2	5.9	9279
100	100-5100-31-55,24-20	8x12.7, - ,7x12.7, -	35	2	6.1	9279
105	100-5105-31-55,24-20	8x14.5, - ,7x12.7, -	35	2	6.3	9279
Convex front, Ballistic
92	100-5092-31-61,24-20	7x12.7, 4x12.7, 2x12.7, -	40, 20, -	2	5.8
95	100-5095-31-61,24-20	7x12.7, 4x12.7, 2x12.7, -	45, 30, -	2	5.9
100	100-5100-31-61,24-20	7x12.7, 4x12.7, 2x12.7, -	45, 30, -	2	6.1
105	100-5105-31-61,24-20	7x14.5, 4x14.5, 2x14.5, -	45, 30, -	2	6.3
Hammer: COP 42
Diameter mm	Part No.	Buttons x Button diam(Gauge outer, Gauge inner, Centre, Cone)	Gauge buttons angle o (Outer, Inner, Cone)	Flushing holes (No. x size mm)	Weight approx. kg	Foot valve Part No.
Flat front, HD
105	100-5105-60,24-20	8x14.5, 7x12.7, -	35	2	7.5
110	100-5110-60,24-20	8x14.5, 7x12.7, -	35	2	8.2
115	100-5115-60,24-20	8x14.5, 8x12.7, -	35	2	8.4
130	100-5130-60,24-20	8x14.5, 10x12.7, -	35	2	9.3
140	100-5140-60-1218,08-20	8x14.5, 9x12.7, -	35	2	9.3
SpeedBit
105	100-5105-60-55,24-20	8x14.5, - ,7x12.7, -	35	2	7.5
115	100-5115-60-55,24-20	8x14.5, - ,8x12.7, -	35	2	8.4
Convex front, Ballistic
105	100-5105-60-61,24-20	7x14.5, 4x14.5, 2x14.5, -	40, 20, -	2	7.5
110	100-5110-60-61,24-20	7x14.5, 4x14.5, 2x14.5, -	40, 20, -	2	7.8
115	100-5115-60-61,24-20	7x14.5, 4x14.5, 3x14.5, -	40, 20, -	2	8
130	100-5130-60-61,24-20	9x12.7, 6x12.7, 5x12.7, -	40, 20, -	2	9
Hammer: COP 44,440 Ingers oil-Rand DHD 340A, DH4, Minroc 4 valveless, Compair Holman VOL 400
Diameter mm	Part No.	Buttons x Button diam(Gauge outer, Gauge inner, Centre, Cone)	Gauge buttons angle o (Outer, Inner, Cone)	Flushing holes (No. x size mm)	Weight approx. kg	Foot valve Part No.
Flat front, HD
105	100-5105-34,24-20	8x14.5, - ,7x12.7, -	35, - , -	2	8.6
110	100-5110-34,24-20	8x14.5, - ,7x12.7, -	35, - , -	2	8.7
115	100-5115-34,24-20	8x14.5, - ,8x12.7, -	35, - , -	2	9
125	100-5125-34,24-20	8x14.5, - ,10x12.7, -	35, - , -	2	10.5
130	100-5130-34,24-20*	8x14.5, - ,10x12.7, -	35, - , -	2	11
140	100-5140-34-1218,08-20*	8x16.0, - ,9x14.5, -	35, - , -	2	11.5
Hammer: COP 44,440 Cont.
Diameter mm	Part No.	Buttons x Button diam(Gauge outer, Gauge inner, Centre, Cone)	Gauge buttons angle o (Outer, Inner, Cone)	Flushing holes (No. x size mm)	Weight approx. kg	Foot valve Part No.
SpeedBit
110	100-5110-34-55,24-20	8x14.5, - ,7x12.7, -	35, - , -	2	8.7	9237
115	100-5115-34-55,24-20	8x14.5, - ,8x12.7, -	35, - , -	2	9	9237
125	100-5125-34-55,24-20	8x14.5, - ,10x12.7, -	35, - , -	2	10.5	9237
130	100-5130-34-55,24-20	8x14.5, - ,10x12.7, -	35, - , -	2	11	9237
Convex front, Ballistic
105	100-5105-34-61,24-20	7x14.5 4x14.5 2x14.5, -	40, 20, -	2	8.2	9237
110	100-5110-34-61,24-20	7x14.5 4x14.5 2x14.5, -	40, 20, -	2	8.4	9237
115	100-5115-34-61,24-20	7x14.5 4x14.5 3x14.5, -	40, 20, -	2	8.5	9237
115	100-5115-34-2234,08-20	8x12.7 4x12.7 3x12.7, -	45, 30, -	2	9	9237
125	100-5125-34-61,24-20	9x12.7 6x12.7 5x12.7, -	40, 20, -	3	9.1	9237
130	100-5130-34-61,24-20*	9x12.7 6x12.7 5x12.7, -	40, 20, -	3	9.3	9237
Reaming bit for 104-115 mm pilot holes
165	100-5165-34-9102,08-20	14x16	35	2	15.9	9237