Specifications

1.Reverse Circulation Drill Bits
2.Long life
2.Lower oil, air consumption
3.China Manufacturer
4.Factory Price

Reverse Circulation Drill Bits China Manufacturer with best price and high quantity

 

Bit Face Shape Selection 

Drop Center, Concave Front, Convex Front, Double Gauge, Flat Front

 

1. Drop Center Bit

2. Concave Face

3. Convex Face

4. Double Gauge Face

5. Flat Face Bit

 

Carbide Button Shape Selection 

Domed/Round Button, Parabolic/Semi-Ballistic Button, Ballistic Button, Sharp Button, Flat Button

1. Domed/Round Button

2. Parabolis/Semi-Ballistic Buttons

3. Ballistic Buttons

4. Sharp Buttons

5. Flat Buttons

 

Reverse Circulation Drill Bits China Manufacturer

Drill Bit	Bit Dia.		Air Holes No.	Gauge Buttons	Front Buttons	Weight (Kg)
	mm	inch
NRC	115	4	2	8*Φ14	8*Φ13	14.0
	140	5	2	8*Φ16	8*Φ14	16.5
	165	6	2	8*Φ18	8*Φ16	24.85
Mic	133	5	2	8*Φ16	8*Φ14	17.5
	140	5	2	8*Φ16	8*Φ14	18.0
	146	5	2	8*Φ18	8*Φ14	20.0
PR5	133	5	2	8*Φ16	8*Φ14	12.5
	140	5	2	8*Φ16	8*Φ14	13.0
	146	5	2	8*Φ18	8*Φ14	13.5
PR4	115	4	2	8*Φ16	8*Φ13	14.4
	127	5	2	8*Φ16	8*Φ14	15.0
	133	5	2	8*Φ16	8*Φ14	15.5

 

 

Reverse Circulation Drill Bits China Manufacturer

 

 

Before quotation, below information needed:

1. What kind of hole diamater will you drill?

2. What depth will you drill?

3. What kind of rocks you need to drill?

Delivery Time: 2 to 3 days after payment received if have stocks

                         7 to 15 days for production after payment received if no stocks

Payment: T/T in advance, L/C at sight

Shipping: By air or by sea

Quality Control: Make sure the best quality of every products before shipping out