Factory direct sale Rock drill machine accessories drill Bit Made in China Drilling Tool
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- Supplier: Yanggu Tianji Industrial And Mining Tools Co. Ltd.
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Product Overview
Description
Wear-resistant button bit tooth made in China
This product is used for drilling blasting holes and support holes in engineering, roads, mines and other medium and above strata. The supporting pneumatic rock drill is used to provide impact power, and the drill pipe is generally B19, B22 or B25 hexagonal Kelly. It should be noted that during use, empty drilling and drilling in soft soil layer are not allowed, and drilling in rock stratum with voids is stable.
Shell alloy steel grade | 42CrMo 35CrMoA 35CrNiMoVA |
Cemented carbide grade | YK05 YK20 |
Specification and model | 30mm 32mm 34mm 36mm 38mm 40mm 42mm (Customizable） |
Bore and taper | 7° 11° 12° （Customizable） |
Gear insertion process | Cold pressing / Hot inlay |
Color | Customizable |
Specifications（mm) | Tooth number | Connection form |
Φ40 | 7 | R22/R25（screw thread） |
Φ41 | 7 | R22/R25（screw thread） |
Φ42 | 7 | R22/R25（screw thread） |
Φ45 | 7 | R32（screw thread） |
Φ45 | 9 | R32（screw thread） |
Φ51 | 9 | R32（screw thread） |
Φ55 | 9 | R32/R38/T38（screw thread） |
Φ32 | 7 | 7°Taper hole connection |
Φ33 | 7 | 7°Taper hole connection |
Φ34 | 7 | 7°Taper hole connection |
Φ35 | 7 | 7°Taper hole connection |
Φ36 | 7 | 7°Taper hole connection |
Φ38 | 7/9 | 7°Taper hole connection |
1.Selected grade Tungsten Carbide ensures greater hardness for better cutting performance.
2.Well executed brazing process to combine the carbide tip with steel body firmly together.
3.We are in the process of production inspection and test execution.
2.Well executed brazing process to combine the carbide tip with steel body firmly together.
3.We are in the process of production inspection and test execution.
Features:
1. The cylindrical tooth bit has the advantages of fast drilling speed, long service life, accurate positioning, coarse rock cuttings and low dust.
2. There are two connection modes of ball gear bit: taper hole connection and threaded connection. The taper hole connection is generally 7 ° in China, while in foreign countries, in addition to 7 °, it is also often 6 °, 11 °, 12 ° and so on. The threaded connection is generally determined according to the drill bit diameter and the drill pipe thread used. Usually, the drill bit with small diameter, such as Φ 42. Generally, the corrugated thread of R22 and R25 is used, Φ 45~ Φ 51 is generally the waveform thread of R32, Φ 55~ Φ 76 is usually T38 trapezoidal thread, Φ 89~ Φ Generally, those above 110 are trapezoidal threads of T45, Φ Above 110 are T51 trapezoidal threads.
Process:
According to the customers drawings or samples.
Packaging
Rust-proof packaging, plastic pale, wooden box, standard seaworthy package.
Or as per customer’s needs.
Lead time
14 days on average, mainly depends on your order quantity.
Shipping
We accept different shipping lane.
Air express by DHL, FEDEX, TNT, UPS, EMS...
The product delivery will be strictly on time.
Rust-proof packaging, plastic pale, wooden box, standard seaworthy package.
Or as per customer’s needs.
Lead time
14 days on average, mainly depends on your order quantity.
Shipping
We accept different shipping lane.
Air express by DHL, FEDEX, TNT, UPS, EMS...
The product delivery will be strictly on time.
1. Methods of Payment:
T/T (Telegraphic Transfer) or Western Union or L/C at sight
2. Handling time for an order
Based on order quantity, normally it takes 25 days for production.
Only 2 or 3 days if we have stock on your request size.
3. Shipping way
Sample order: we suggest Courier express like DHL/UPS/TNT/FEDEX or by air
Bulk order: we suggest by air or by sea.
4. Quality Control
We have our own experienced QC.
There will be strict inspection and testing for every order before shipping out.
5. After Services:
1. Our sales team will response for your question within 24 hours (Holidays Excluded)
2. Technical Support will be available in any time
T/T (Telegraphic Transfer) or Western Union or L/C at sight
2. Handling time for an order
Based on order quantity, normally it takes 25 days for production.
Only 2 or 3 days if we have stock on your request size.
3. Shipping way
Sample order: we suggest Courier express like DHL/UPS/TNT/FEDEX or by air
Bulk order: we suggest by air or by sea.
4. Quality Control
We have our own experienced QC.
There will be strict inspection and testing for every order before shipping out.
5. After Services:
1. Our sales team will response for your question within 24 hours (Holidays Excluded)
2. Technical Support will be available in any time
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