8 Inch DTH DHD380-270 Drill Bit

• Certification: ISO 9001:2008
• Standard: GB
• Surface Treatment: Spray-Paint
• Manufacturing Process: Forging
• Material: Alloy Steel
• Size: DHD380-270
• Model NO.: DHD380-270
• Bit Face: Spherical,Concave,Flat
• Application: Water Well,Mining Drilling
• Matched DTH Hammer: DHD380
• Transport Package: Wooden Case
• Specification: 8inch
• Trademark: Teamwhole
• Origin: China
• Production Capacity: 5000PCS

Product Description

Changsha Tianhe Drilling Teamwhole can produce wide range of TH bits,range from 3"-47"(76mm-1200mm)in diameter.These DTH bits shank can cover all of international brand like BR,MACH,DHD,COP,IR,NUMA,SD,QL,MISSION etc.
DTH bits are made from high quality alloy steel and advanced heat treatment.Teamwhole brand DTH bits face include concave,flat,drop center,convex etc.
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
  
 The below is the specification of TEAMWHOLE DHD360-203mm bit specifications

DTH BIT model		DHD3.5-90mm bit
Diameter		No*Butotn diameter,mm		Flushing holes	Weight
mm	Inch	Gauge buttons	Front buttons
270	10.6	10*19MM	10*18MM	2	30

 
Matched DTH hammer

Model	Working  pressure	Thread Type	Outer diameter
Teamwhole DHD380	6 bar ~ 25 Bar	API 4 1/2"Reg Pin	182mm

 

DTH BIT FACE AND CARBIDES SHAPE
 
Other size of DTH BIT

Matched DTH Hammer inch	Bit diameter		Qty*Button Dia(mm)		Air holes	Weight	Bit shank
	mm	inch	Gauge	Front	pcs	kg
2"	70mm	2 3/4"	6*10mm	4*8mm	2	3	BR2
	76mm	3"	6*12mm	5*10mm	2	3.6
3"	95mm	3 3/4"	6*14mm	4*13mm	2	4.5	BR3,BR33,COP32
	102mm	4"	6*14mm	5*13mm	2	5.9
3.5"	90mm	3.5"	6*14mm	4*13mm	2	4.9	DHD3.5
	102mm	4"	6*14mm	5*13mm	2	5.9
4"	105mm	4 1/8"	7*14mm	6*13mm	2	8	DHD340,COP44 QL40,M40,SD4
	130mm	5"	8*14mm	7*14mm	2	10
5"	140mm	5.5"	7*18mm	7*14mm	2	15.5	DHD350,QL50,SD5 M50
	152mm	6"	8*18mm	8*14mm	2	16.5
6"	165mm	6 1/2"	8*18mm	8*16mm	2	24.5	DHD360,SD6,QL60 M60
	171mm	6 3/4"	8*18mm	4*18mm+4*16mm	2	25
8"	203mm	8"	9*18mm	6*18mm+4*16mm	3	46	DHD380,SD8,QL80 M80
	254mm	10"	10*18mm	6*18mm+9*16mm	3	60
10"	254mm	10"	14*18mm	12*18mm+9*16mm	3	90	TH10,SD10,NUMA100
	305mm	12"	14*18mm	14*18mm+11*16mm	3	120
12"	350mm	13 3/4"	15*19mm	24*19mm+15*16mm	3	190	DHD112,SD12, NUMA120,NUMA125
	400mm	15 3/4"	30*19mm	18*19mm+22*16mm	3	230
14"	430mm	17"	30*20mm	18*19mm+25*16mm	3	245	TK14,NUMA125
	560mm	22"	36*20mm	60*19mm	3	300
18"	550mm	21 5/8"	48*19mm	90*18mm	6	560	TK18,NUMA180
	700mm	27.5"	48*20mm	60*19mm+73*18mm	6	740
24""	780mm	30 3/4"	54*20mm	66*20mm+90*18mm	6	1265	TK24,NUMA240
	1000mm	39"	78*20mm	154*18mm	6	1500

Excellent for water well drilling, geothermal hole, hole blasting and etc.