Model Number	3/3.5,4,5,6,8,10,12 inches	Certification	ISO CE
Drill Rock hardness	F=6-20	Warranty	1 Year
Condition	New	After-sales Service	7X24hours available
Type	Down the hole drill bits	Color	As request
Processing Type	Forging	Button shape	Spherical, Ballistic, Semi-ballistic
Place of Origin	Hebei, China (Mainland)	Bit face shape	Flat, concave, convex, drop center
Brand Name	JCDRILL	Other shanks	COP,DHD,MISSION, SD
Usage	Rock drilling	Type	DTH Hammer bits
Material	Tungsten Carbide	Machine Type	Drilling Tool
Advantages	high quality and factory prices	Bit face shape	Flat, concave, convex, drop center
Application	Quarry or mining or well drilling	Packing	Carton and Wooden case

Bit Shank	Bit Diameter.(mm)
CIR-Series Low Air pressure DTH Bits
CIR65,HR65	65,68,75mm
CIR80,HR80	83,85mm
CIR90,HR90	85,90,110mm
CIR110,HR110	110,115,120,135mm
HR150,	155,160,165,170,180,210,220mm
1''-2''Middle Air pressure DTH Bits
BR1,BR2,HD25	64,70,76,80,82,90mm
3'' High Air pressure DTH Bits
COP32,BR3,HD35,IR3.5,COP34,QL30,M30	85,90,95,100,105mm
4'' High Air pressure DTH Bits
HD45,DHD340A,COP44,SD4,QL40,M40,HM4	105,110,115,120,127,130,133mm
5'' High Air pressure DTH Bits
HD55,DHD350,COP54,SD5,QL50,M50,HM5	130,135,140,146,152,165mm
6'' High Air pressure DTH Bits
HD65,DHD360,COP64,SD6,QL60,M60,HM6	152,155,165,171,190,203mm
8'' High Air pressure DTH Bits
HD85,DHD380,COP84,SD8,QL80,M80,HM8	200,203,216,222,226,229,,241,254,270,305mm
10'' High Air pressure DTH Bits
SD10,NUMA100	254,305,311,318,330mm
12'' High Air pressure DTH Bits
DHD1120,SD12,NUMA120,NUMA125	305,311,330,356,381mm

Minimum Order Quantity	N/A
Price
Packaging Details	Standard Export Delivery Package
Delivery Time	7days
Payment Terms	T/T
Supply Ability	Based on Detailed Order

Drop Center For high penetration rates in soft to medium hard and fissured rock formations. Low to medium air pressures. Maximum hole deviation control. Concave Face The all-round application bit face special for medium hard and homogenerous rock formations. Good hole deviation control and good flushing capacity. Convex Face For high penetration rates in soft to medium-hard with low to medium air pressures. It is the most resistance to steel wash, and may reduce the load and wear on the gauge buttons, but poor hole deviation control. Flat Face This kind of face shape is suitable for very hard and abrasive rock formations in applications with high air pressures. Good penetration rates an resistance to steel wash. Double Gauge Face This kind of face shape is suitable for fast penetration rates in medium to hard rock formations. Designed for high air pressures and good resistance to steel wash step gauge bit. Drop Center For high penetration rates in soft to medium hard and fissured rock formations. Low to medium air pressures. Maximum hole deviation control. Concave Face The all-round application bit face special for medium hard and homogenerous rock formations. Good hole deviation control and good flushing capacity. Convex Face For high penetration rates in soft to medium-hard with low to medium air pressures. It is the most resistance to steel wash, and may reduce the load and wear on the gauge buttons, but poor hole deviation control. Flat Face This kind of face shape is suitable for very hard and abrasive rock formations in applications with high air pressures. Good penetration rates an resistance to steel wash. Double Gauge Face This kind of face shape is suitable for fast penetration rates in medium to hard rock formations. Designed for high air pressures and good resistance to steel wash step gauge bit.

High Pressure button bits
	Model	Head,Dia.（mm）	Shank Length	Apline Q'ty	Port Hole Q'ty	Drill Bit Face
DHD	JD25A	76,80,85,90	174	6	2	Flat Face
	DHD3.5	90,95,100,108	180	8		Flat Face
	DHD3.5A					Flat Face
	DHD340	108,115,127,130	209			Concave Face
	DHD340A					Concave Face
	DHD350	140,146,152,165,178	260			Concave Face,Flat Face,Convex Face
	DHD350A					Concave Face,Flat Face,Convex Face
	DHD350S	127,130	260			Convex Face
	DHD360	154,165,171,178,190,203	308.5			Concave Face,Flat Face
	DHD360A					Concave Face,Flat Face
	DHD380	203,216,230,235,254,275,305	350	10		Concave Face,Convex Face,Concave-Convex Face
	DHD380A					Concave Face,Convex Face,Concave-Convex Face
	DHD1120	305,311,325,350,381,400,445,500	490	8	4	Concave Face,Convex Face,Concave-Convex Face
QL	QL40	108,115,127,130	108	10	2	Convex Face
	QL40A					Convex Face
	QL50	140,146,152,165,178	140	12		Concave Face,Flat Face,Convex Face
	QL50A					Concave Face,Flat Face,Convex Face
	QL60	154,165,171,178,190,203	154			Concave Face,Flat Face
	QL60A					Concave Face,Flat Face
	QL80	203,216,230,235,254,275,305	331	16		Concave Face,Concave-Convex Face
	QL80A					Concave Face,Concave-Convex Face
NUMA	NUMA100	254,275,305,325,350,400	375	10	2,3,4	Concave-Convex Face
	NUMA100A					Concave-Convex Face
	N125	305,311,325,350,381,400,445	491		3,4	Concave-Convex Face
MISSION	MISSION 30	90,95,100,108	225	8	2	Flat Face
	MISSION 40	108,115,127,130	228	12		Concave Face
	MISSION 50	140,146,152,165,178	260			Concave Face,Flat Face,Convex Face
	MISSION 60	154,165,171,178,190,203	231			Concave Face,Flat Face
	MISSION 80	203,216,230,235,254,275,305	329			Concave Face,Concave-Convex Face
SD	SD4	108,115,127,130	260	8		Convex Face
	SD5	140,146,152,165,178	259			Concave Face,Flat Face,Convex Face
	SD6	154,165,171,178,190,203	322			Concave Face,Flat Face
	SD8	203,216,230,235,254,275,305	321		2 3	Concave Face,Concave-Convex Face
	SD10	254,275,305,325,350,400	356		2 3 4	Concave-Convex Face
	SD12	305,311,325,350,381,400,445,500	470		3 4	Concave-Convex Face