DTH Hole Opene Bit D312-D216 for Rock Drilling

• Customization: Available
• Manufacturing Process: Forging
• Material: Carbon Steel
• Model NO.: D312-D216
• Diameter: 312mm
• Gauge Buttons: 18
• Front Buttons: 27
• Carbide Design: Dome
• Transport Package: Wood Package
• Trademark: Prodrill
• Origin: China
• Production Capacity: 30000PCS/Month

Product Description

• Description

DTH hole opener
Prodrill manufactures hole-openers of all sizes and designs. We manufacture our hole-openers with highest grade of aircraft quality steel available. We manufacture from 6″-36″ diameters with any size pilot hole required.
We specialize in customization of hole openers where you may add an air hole through the pilot and/or carbide buttons on the pilot for better evacuation and cleaning of the hole thus reducing wear on the steel diameter. At any given time, we have several standard hole opener shanks in stock and in process, so please keep us in mind for all your hole opener needs

DTH Hole Opener- DTHO-D312-D216 for deep hole water well and large diameter surface hole drilling

• Diameter: 312mm
• Diameter2: 216mm
• Gauge Buttons: 18
• Front Buttons: 27
• Shank type: DHD112 SD12 NUMA120
• Carbide Design: Dome

Rock drilling tools manufacturer ProDrill DTH hole opener bits are manufactured from the highest quality aircraft alloy steel. Which are used to enlarge the size of a pilot hole most commonly for Blast hole drilling, Quarrying, DTH Drilling, Water Well Drilling, Oil Drilling, Construction, Foundation Drilling.

ProDrill offers a wide size of DTH hole opener bits, Guide diameter scope from 95mm - 311mm, Reamed diameter scope from 130mm - 444.5mm, DTH hammer size from 3.5'', 5 '', 6'', 8'', 12'' with all industry DTH hammer shanks for a match.

Rock drill bits advantages :

(1)  Wear pads, back reamer buttons, and or buttons on the pilot can be added for an additional fee.

(2)  The ability to use less powerful equipment than that required to drill the large diameter hole.

(3)  Straighter holes result from the smaller pilot hole.

Better clearing of cut material.

 Ps.: Others
1. Besides, we also sell other Stone drilling tools:
1) Rock drill:
Handheld rock Drill: Y10, Y18, Y20, Y24, Y26, TY24C, etc;
Airleg rock drill: YT24, YT28, etc;
2) Drill rod: Taper rod (hex. 22 * 108mm)
3) Drill bit: Taper button bit, Taper chisel bit, Taper cross bit
4) Splitter: Handheld stone splitter (or shims and wedges or plug and feather), G10 pneumatic splitter
5) Breaker: G10, TPB, etc;

2. Advantages:
Compared with the oversea brands, our advantages are bellowing:
a. Our products can match over 95% against the original products
b. Price are competitive against the famous brands and best quality against the small factory
 
3. About Us:
1.    Our factory has been specialized in manufacturing drilling tools and spare parts for over 10 years.
2.    We have advanced technology and equipment.
3.    Our technician has more than 13 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.

4. Welcome your question and inquiry, Contact: James Qiu

DTH hole opener drill bits
 

Remark				Qty.× Button Dia.(mm)
	Shank	GuideDia. (1)	Reamed Dia.			Weight
		(mm)	(mm)			(kg)
				Outer	Front
For 3.5" hammer	DHD3.5	95	130	6×14+	4×11+3×11	8.5
				2×14
	DHD3.5	80	165	8×14	8×13+6×11	15.1
		100	165	8×14	4×13+4×12+3×12	14.5
	DHD3.5	110	165	8×14	4×13	15.2
		100	165	8×14	4×13+4×12+3×12	14.5
		115	171.5	9×16	6×14	16.1
For 5" hammer	DHD350R	75	152	8×18	6×14+2×14+2×14	35.2
For 6" hammer	DHD360	165	191	10×16	3×14+4×14	74.5
	DHD360	108	220	10×18	12×18+2×14+2×14	79.3
	DHD360	165	254	12×18	12×16+4×14+5×14	65.3
For 8" hammer	DHD380	140	200	10×18	8×12+2×14+4×14	10.6
	DHD380	188	254	22×18	2×18	147.4
	DHD380	152	305	14×18	10×18+16×16	107.8
	DHD380	210	381	16×18	28×18	120.5
For 12" hammer	DHD112	216	312	18×18	15×18+6×16+6×14	133.6
	DHD112	254	375	18×18	12×18+15×18	136.2
	DHD112	311	444.5	18×19	15×19+21×19	328.5