• 38mm 8 Tooth 12 Degree Tapered Drilling Bit
  • 38mm 8 Tooth 12 Degree Tapered Drilling Bit
  • 38mm 8 Tooth 12 Degree Tapered Drilling Bit
  • 38mm 8 Tooth 12 Degree Tapered Drilling Bit
  • 38mm 8 Tooth 12 Degree Tapered Drilling Bit
  • 38mm 8 Tooth 12 Degree Tapered Drilling Bit

38mm 8 Tooth 12 Degree Tapered Drilling Bit

Customized: Customized
Standard: AISI, API
Length: Taper-length
Type: Core Drill Bit
Material: High Carbon Steel
Usage: Masonry Drilling
Samples:
US$ 6.3/Piece 1 Piece(Min.Order)
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Customization:

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Ms. Lily
Oversea Business Manager
Diamond Member Since 2016

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Trading Company

Basic Info.

Model NO.
38mm 8 tooth
Tooth No.
8 Buttons
Head Dia.
38mm
Degree
7, 11, 12 Degree Could Be Customized
Colour
Golden, Red, Black Could Be Customzide
Package
50PCS in a Wooden Box
Weight
16-22kg/Box
Tooth Size
08mm*6PCS + 07mm*2PCS
Button Material
ZK05 hard alloy
Transport Package
Plywood Case
Specification
38mm, 8 tooth
Trademark
NONE
Origin
China
HS Code
8207199000
Production Capacity
5000PCS/Month

Product Description

38mm 8 tooth button bit

The selection of button bit is quite concerning with the rock condtion. If you don't know how to choose an applicable button bit, we strongely suggest you study the rock conditon first.
Below is the rock hardness grade list for your reference.

Rock Grade Hardness Level Typical Rock F grade Applicable                    button bit
I The hardest the hardest and compact quartz, basalt and other special hard rocks f=20 The best quality
II strong hard very hard granite&quartz porphyry&siliceous schist, hard quartz,  the hardest sandstone &limenstone rock  f=15 The best or                 high end quality
III very hard compact granite, very hard sandstone&limestone, quartz vein, hard conglomerate, very hard iron ore f=10 High end or Normal
IIIa very hard hard sandstone, limestone, marble,  dolomite,  pyrite ore, not hard granite f=8 Normal 
IV hard normal sandstone, iron ore f=6 Normal 
IVa hard Sandy shale, shaly sandstone f=5 Normal 
V middel hard hard pelitopsammite, not hard sandstone and limestone, soft  conglomerate f=4 Normal 


Below is the typical rock photos from the hardest to normal hard for your reference. Just tell us your quarry/rock condition, we will recommend suitable button bit for you, it's easy.
38mm 8 Tooth 12 Degree Tapered Drilling Bit

38mm 8 Tooth 12 Degree Tapered Drilling Bit

We can  design various Carbide Alloy Drill Bit according to your requirements. Below is three differen quality button bit.
38mm 8 Tooth 12 Degree Tapered Drilling Bit


 

Tapered Button bit connection: 

 Drill bit diameter     Taper(°)   
(mm) (in)
28 1  3/32 6,7
30 1  3/16 6,7
32 1 1/4 6,7,11,12
34 1 11/32 6,7,11,12
35 1  3/8 6,7,11,12
36 1 13/32 6,7,11,12
38 1  1/2 6,7,11,12
40 1  9/16 6,7,11,12
41 1 5/8 6,7,11,12
42 1 21/32 6,7,11,12
43 1 11/16 6,7,11,12
45 1 3/4 6,7,11,12
50 1 31/32 6,7,11,12
60 2 3/8 6,7,11,12
 
Thread button bit connection:
Drill bit diameter Thread standard
(mm) (in)
35 1  3/8 R22 R25 
36 1 13/32 R22 R25 R28
38 1  1/2 R22 R25 R28 R32
43 1 11/16  R25 R28 R32
45 1 3/4  R25 R28 R32
48 1  7/8 R32
51 2 R32
64 2  1/2 R38 T38
76 3 R38 T38 T45
89 3  1/2 R38 T38 T45 T51
102 4 T45 T51 ST58 SD60
115 4  1/2 T51 ST58 SD60
127 5 T51 ST58 SD60
140 5  1/2 T51 ST58 SD60
152 6 T51 ST58 SD60

  we can guarantee all our product:

(1) Direct factory wholesale price, price is cheaper than trading companies.

(2) Strict Quality Control Department, each piece bit need to be checked.

(3) Accept custom order. can special make for you.

(4)  Focus on the quality.We seek long-term interest.

(5)Welcome small orders, our Min Quantity Order is 1 piece.

(6) All bit are made by skilled workers and advanced technology, we have more than 20 years' experiences, so you must be satisfied with our super quality.
38mm 8 Tooth 12 Degree Tapered Drilling Bit
Our superior products (taper button bit, taper drill rod, thread button bit and thread drill rod)
38mm 8 Tooth 12 Degree Tapered Drilling Bit


FAQ Collection:

Q1: Are you factory or trade company?
A1: We are factory. And we have ourselves trading company.

Q2: What the exactly address of your factory?
A2: Our factory is located in No.9 Kaixuan Ave West,Economic Zone Quzhou, Zhejiang, China

Q3: Warranty terms of your machine?
A3: One year warranty for the machine and technical support according to your needs.

Q4: Will you provide some spare parts of the machines?
A4: Yes, of course.

Q5: What about the voltage of products? Can they be customized?
A5: Our standard voltage is 380V, 50HZ, 3phase. The voltage can be customized according to your equirement.

Q6: Which payment term can you accept?
A6: 30% T/T in advanced, 70% T/T against the B/L copy.

Q7: How long will you take to arrange production?
A7: we can delivery the normal goods within 7-15 days. Other nonstandard electrical items we will delivery within 25-30 days.

Q8: Can you accept OEM orders?
A8: Yes, with professional design team, OEM orders are highly welcome.

Q9: Which trade term can you accept?
A9: Available trade terms: FOB, CIF, CFR, EXW, CPT, etc.
Product Description
We can also design all kinds of Alloy Bore Bit according to your requirements.
Tapered Button bit connection: 
 Drill bit diameter     Taper(°)   
(mm) (in)
28 1  3/32 6,7
30 1  3/16 6,7
32 1 1/4 6,7,11,12
34 1 11/32 6,7,11,12
35 1  3/8 6,7,11,12
36 1 13/32 6,7,11,12
38 1  1/2 6,7,11,12
40 1  9/16 6,7,11,12
41 1 5/8 6,7,11,12
42 1 21/32 6,7,11,12
43 1 11/16 6,7,11,12
45 1 3/4 6,7,11,12
50 1 31/32 6,7,11,12
60 2 3/8 6,7,11,12
 
Thread button bit connection:
Drill bit diameter Thread standard
(mm) (in)
35 1  3/8 R22 R25 
36 1 13/32 R22 R25 R28
38 1  1/2 R22 R25 R28 R32
43 1 11/16  R25 R28 R32
45 1 3/4  R25 R28 R32
48 1  7/8 R32
51 2 R32
64 2  1/2 R38 T38
76 3 R38 T38 T45
89 3  1/2 R38 T38 T45 T51
102 4 T45 T51 ST58 SD60
115 4  1/2 T51 ST58 SD60
127 5 T51 ST58 SD60
140 5  1/2 T51 ST58 SD60
152 6 T51 ST58 SD60
  we can guarantee all our product:
(1) Direct factory wholesale price, price is cheaper than trading companies.
(2) Strict Quality Control Department, each piece bit need to be checked.
(3) Accept custom order. can special make for you.
(4)  Focus on the quality.We seek long-term interest.
(5)Welcome small orders, our Min Quantity Order is 1 piece.
(6) All bit are made by skilled workers and advanced technology, we have more than 20 years' experiences, so you must be satisfied with our super quality.

 

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