34mm 12 Degree Tapered 7 Tooth Button Bit for Rock Drilling

• Customized: Customized
• Standard: AISI, API
• Length: Taper-length
• Type: Core Drill Bit
• Material: High Carbon Steel
• Usage: Metal Drilling, Masonry Drilling
• Model NO.: 34mm button bit
• Tooth No.: 7 Buttons
• Head Dia.: 34mm
• 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
• Button Material: ZK05 hard alloy
• Transport Package: Plywood Case
• Specification: 34mm, 7 tooth
• Trademark: NONE
• Origin: China
• HS Code: 8207199000
• Production Capacity: 5000PCS/Month

Product Description

34mm 7 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

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.
Our products for other clients

Match with B22 drill rod