| Customization: | Available |
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| After-sales Service: | 3 Month |
| Warranty: | 6months |
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Surface set diamond core bits can be used with any type of core barrels.By varying the diamond grade,size,quality and matrix hardness and crown shape.
To avoid excessive matrix wear at the leading edge of each segment.Tingsten carbide inserts are fitted on each side of the waterway.This kind of bits cannot be used in broken or loose formation.
Diamond stone size: Stones Per Carat (spc)
10/15 spc: Soft to Medium Formation
20/25 spc: Medium to Hard Formation
30/40 spc: Medium Hard to Hard Formation
40/60 spc: Hard Formation
60/80 spc: Hard to Very Hard Formation
FACE PROFILES
Semi Round : Standard profile. Very strong in hard broken formation.
Stepped : High penetration and stability but fragile in hard fractured formation.
Conical : Good penetration rate and stability. Stronger than stepped profile.
Pilot : Good core recovery in soft, friable formation especially when used with face discharge. Good stablisation but fragile nose.
Biconical : Only used on thick kerf core bits in soft unfractured formation.
Size Available:
Q series:AQ,BQ,NQ,HQ,PQ,BQ3,NQ3/NQTT,NQ2,HQ3/HQTT,PQ3/PQTT
T2 Series: T2 46,T2 56,T2 66,T2 76,T2 86,T2 101
T6 Series: T6 76,T6 86,T6 101,T6 116,T6 131,T6 146, T6S 101
T Series: T36,T46,T56,T66,T76,T86
Z Series: Z46,Z56,Z66,Z76,Z86,Z101,Z116,Z131,Z146
B Series: B36,B46,B56,B66,B76,B86,B101,B116,B131,B146
WF Series: HWF,PWF,SWF,UWF,ZWF
WT Series: RWT,EWT,AWT,BWT,NWT,HWT
WM Series: EWM,AWM,BWM,NWM
WG Series: EWG,AWG,BWG,NWG,HWG
Others: NMLC,HMLC,LTK48,LTK60,BGM,NGM,ADBG,TBW,TNW,
ATW,BTW,NTW,NXD3,AX,NX,NXC,AXT,T6H,4 9/16,NWD4,412F,SK6L146,
TT46,TB56,TS116,CHD10
Our Company pas atention to produce quality and abides to credit, and also does the best to provide the quality produdcts and excellent service to customer. To build good after-sale service system, we draw up the Quality Guarantee according to the industrial standards combining field experience.
| Diamond Drill Bits |
1. Size, and / or technical parameters(matrix etc.) are different from the requirements of clients' purchase order.
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Replace |
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2. Thread can not fit clients' barrel.
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Repair or replace | |
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3. Break down a piece from matrix, and the volume of the piece exceed 2mm*2mm*2mm, and such break is not caused by drilling.
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Replace |
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4. Matrix falling not caused by drilling.
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Replace or return | |
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5. Groove on matrix caused by manufacturer.
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Replace or return |
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6. Drilling speed is obvious slower than congener products caused by manufacturer.
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Raplace,and each item quantity does not exceed 3pieces. | |
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7. Bit life is obvious short caused by manufacturer.
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8. Breaking down of matrix, falling matrix, groove and short bit life caused by operating reasons-drill rod sticking, premature failure of the bit crown and hole-bottom not to be cleaned.
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Be excluded from Qulity Guarantee | |
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9. Short bit life or no penetration caused by drilling machine, drilling techniques or parameters.
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10. Properly worn and the matrix is finished.
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11. Thread damaged or distorted due to improper operation.
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12. Steel body cracked in drill.
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Replace or return |
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| Reaming shell |
1. Thread is not correct.
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Replace or return. |
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2. Steel body creacked in drill.
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3. PCD Strips falling.
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Q: Are you a manufacturer or trading company?
A: We are a manufacturer, the factory is located in Changsha, Hunan, China.
Q: What are your main products?
A: Our products cover diamond core bit, non-coring bit, reaming shell, core barrel, casing pipe, drill rod, soil sampling equipment and other accessories.
Q: How about the delivery terms?
A: 1. Payment: T/T, L/C, Western Union, Paypal.
2. No request on min. order quantity.
3. Transportation: By DHL/UPS/Fedex express, air, sea, train.
Q: How about discount?
A: Price is based on order quantity.
Q: Do you accept sample order?
A: Yes sure, please contact us for details.
Q: How about your after-sales service?
A: As a manufacturer, we offer promt technical support for all issues. Besides we accept goods return or replace for quality problem.
Q: How does your company control the quality?
A: Quality always comes first. In order to guarantee quality for our products, Diyfia always makes a serious inspection for all products and raw materials in strict procedure. We have obtained certificate of ISO9001:2000 in 2004.
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