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Button Bit, Drill Bit, Drilling Bit manufacturer / supplier in China, offering 40mm 7 Ball-Tooth Tapered Bore Bit for Rock Drill, China Wholesale KJ100 10HP 8bar Industrial Belt Driven Air Pump, China Wholesale KJ100 10HP 8bar Industrial Belt Driven Air Compressor and so on.

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Supplier Homepage Product Drilling Tools (rod, bit, hammer) Button bit 40mm 7 Ball-Tooth Tapered Bore Bit for Rock Drill

40mm 7 Ball-Tooth Tapered Bore Bit for Rock Drill

FOB Price: US $5.55-6.3 / Piece
Min. Order: 100 Pieces
Min. Order FOB Price
100 Pieces US $5.55-6.3/ Piece
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Port: Ningbo, China
Production Capacity: 5000PCS/Month
Payment Terms: L/C, T/T, Western Union

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Basic Info
  • Model NO.: 40mm button bit
  • Certification: AISI, API
  • Type: Core Drill Bit
  • Usage: Masonry Drilling
  • Head Dia.: 40mm
  • Colour: Golden, Red, Black Could Be Customzide
  • Weight: 16-22kg/Box
  • Carbon steel: ZK05 hard alloy
  • Transport Package: Plywood Case
  • Origin: China
  • Customized: Customized
  • Length: Taper-length
  • Material: High Carbon Steel
  • Tooth No.: 7 Buttons
  • Degree: 7, 11, 12 Degree Could Be Customized
  • Package: 50PCS in a Wooden Box
  • Tooth Size: 7mm*7PCS
  • Trademark: NONE
  • Specification: 40mm, 7 tooth
  • HS Code: 8207199000
Product Description
40mm 7 tooth Hight end 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 GradeHardness LevelTypical RockF gradeApplicable                    button bit
IThe hardestthe hardest and compact quartz, basalt and other special hard rocksf=20The best quality
IIstrong hardvery hard granite&quartz porphyry&siliceous schist, hard quartz,  the hardest sandstone &limenstone rock f=15The best or                 high end quality
IIIvery hardcompact granite, very hard sandstone&limestone, quartz vein, hard conglomerate, very hard iron oref=10High end or Normal
IIIavery hardhard sandstone, limestone, marble,  dolomite,  pyrite ore, not hard granitef=8Normal 
IVhardnormal sandstone, iron oref=6Normal 
IVahardSandy shale, shaly sandstonef=5Normal 
Vmiddel hardhard pelitopsammite, not hard sandstone and limestone, soft  conglomeratef=4Normal 

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.
40mm 7 Ball-Tooth Tapered Bore Bit for Rock Drill

40mm 7 Ball-Tooth Tapered Bore Bit for Rock Drill

We can  design various Carbide Alloy Drill Bit according to your requirements. Below is three differen quality button bit.
40mm 7 Ball-Tooth Tapered Bore Bit for Rock Drill


Tapered Button bit connection: 

 Drill bit diameter    Taper(°)   
281  3/326,7
301  3/166,7
321 1/46,7,11,12
341 11/326,7,11,12
351  3/86,7,11,12
361 13/326,7,11,12
381  1/26,7,11,12
401  9/166,7,11,12
411 5/86,7,11,12
421 21/326,7,11,12
431 11/166,7,11,12
451 3/46,7,11,12
501 31/326,7,11,12
602 3/86,7,11,12
Thread button bit connection:
Drill bit diameterThread standard
351  3/8R22 R25 
361 13/32R22 R25 R28
381  1/2R22 R25 R28 R32
431 11/16 R25 R28 R32
451 3/4 R25 R28 R32
481  7/8R32
642  1/2R38 T38
763R38 T38 T45
893  1/2R38 T38 T45 T51
1024T45 T51 ST58 SD60
1154  1/2T51 ST58 SD60
1275T51 ST58 SD60
1405  1/2T51 ST58 SD60
1526T51 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 superior products (taper button bit, taper drill rod, thread button bit and thread drill rod)
40mm 7 Ball-Tooth Tapered Bore Bit for Rock DrillVarious Drilling bits in producing line. 

40mm 7 Ball-Tooth Tapered Bore Bit for Rock Drill

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.40mm 7 Ball-Tooth Tapered Bore Bit for Rock Drill
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