- Place of Origin:
- Shandong, China
- Brand Name:
- HW
- Model Number:
- HW32
- Product name:
- mini 38mm button coal mine drill bit
- Size:
- 28mm-42mm
- Color:
- yellow,black ,gold or customized
- number of button:
- 4,6,7,8
- Skirt:
- long and short
- Processing Type:
- Forging
- Packing:
- Wooden box
- Surface:
- Painting
- Carbide button shape:
- spherical, parabolic and ballistic
- Face design:
- Flat, drop center, convex and concave
- Type:
- Rock drill bit
- Material:
- Carbon Steel
- Use:
- rock drilling
- Supply Ability:
- 100000 Set/Sets per Month mini 38mm button coal mine drill bit
- Packaging Details
- Standard wooden box for mini 38mm button coal mine drill bit
- Port
- Qingdao port
- Lead Time:
Quantity(Pieces) 1 - 1000 >1000 Est. Time(days) 10 To be negotiated
Mini 38mm button coal mine drill bit manufacturer:
With carbide buttons hot pressed on bits bodies, Tapered button drill bits have a very good drillingperformance and long life time. Different diameters and taper degrees are available to suit different applications in mining, quarrying etc. We can supply long skirt and short skirt taper button bits.Comparing with tapered chisel bits and tapered cross bits, button bits has higher technology, much longer primary drilling time and higher drilling efficiency, so that the button bit is popular among the users.Tapered equipment affords drillers the ability to change drilling bits whilst still using the same drilling rod. Drillers choose tapered button bits for faster drilling penetration rate. Different taper sizes have different characteristics when it comes to the "knock-off" index – the smaller angle will prevent the bit from spinning.
Mini 38mm button coal mine drill bit manufacturer application:
• Suitable for small hole range
• Widely used in Dimensional Stone Quarrying Industry
• Widely used in Underground Mining Industry

SPECIFICATION FOR ROCK DRILL BITS | |||||
Tapered button bits Diameter | No*button diameter | Taper | Weight | ||
mm | inch | Front | Gauge | kg | |
32 | 1 1/4 | 1*8 | 3*8 | 4°6°7°11°12° | 0.24 |
33 | 1 19/64 | 2*7 | 5*7 | 4°6°7°11°12° | 0.26 |
34 | 1 11/32 | 2*7 | 4*7 | 4°6°7°11°12° | 0.29 |
35 | 1 3/8 | 2*7 | 5*8 | 4°6°7°11°12° | 0.33 |
36 | 1 27/64 | 1*8 | 3*9 | 4°6°7°11°12° | 0.37 |
36 | 1 27/64 | 2*7 | 5*8 | 4°6°7°11°12° | 0.37 |
38 | 1 1/2 | 1*8 | 3*9 | 4°6°7°11°12° | 0.38 |
38 | 1 1/2 | 2*7 | 5*8 | 4°6°7°11°12° | 0.38 |
38 | 1 1/2 | 2*7 | 5*9 | 4°6°7°11°12° | 0.38 |
40 | 1 37/64 | 1*8 | 3*9 | 4°6°7°11°12° | 0.40 |
40 | 1 37/64 | 1*9 | 3*10 | 4°6°7°11°12° | 0.40 |
40 | 1 37/64 | 1*9 | 3*9 | 4°6°7°11°12° | 0.40 |
40 | 1 37/64 | 2*7 | 5*9 | 4°6°7°11°12° | 0.40 |
42 | 1 21/32 | 1*8 | 3*9 | 4°6°7°11°12° | 0.43 |
42 | 1 21/32 | 1*9 | 3*10 | 4°6°7°11°12° | 0.43 |
42 | 1 21/32 | 1*9 | 3*9 | 4°6°7°11°12° | 0.43 |
42 | 1 37/64 | 2*8 | 5*9 | 4°6°7°11°12° | 0.43 |
Main Features for quarry button rock drill bits:
1.tapered button bits connect with tapered drill rod for drilling holes
2.Stale and mature welding technology ensure good quality of bits
3.Accurate dimension of taper degree perfectly matches the rods
4.work reliable and very cost-effective
5.MaterialHigh quality tungsten carbide and Alloy steels
6.ApplicationCan be used in gold mine, railway, tunnel, construction and rock quarries, etc.









Packing for button rock drill bits:
We will sendbutton rock drill bits picture which you have orderd, then packing it with standard export wooden box after you have confirmed the machine is ok .
Different machines" package will be different. We usually supply export wooden box ,carton box package. If it is a big machine and production line machine , it will be loaded in the container directly .
Delivery for button rock drill bits:
1. Delivery by sea :After it was delivered to the seaport . We will tell you the shipping time and arrival time . Finally, we"ll send you all original documents by Express for free .
2.Delivery by Express to your door (DHL/TNT/Fedex/UPS etc ) or by air to your city airport . We will tell you the Express tracking number .
3.Deliver it to the warehouse which you have requested . We will tell you logistic or express tracking number .


Shandong Hengwang Group Co.,Ltd
Shandong Hengwang Heavy Industry co.,ltd is the professional manufacturer ofbutton rock drill bits. With more than 300 workers and 25 Senior engineers,high quality produts and best after sales service can both be guaranteed. main clients are around Southeast Asia,Mid East and South America. Welcome visit our factory and sent inquiry to us.
MOQ,Payment,Loading port,price term,OEM
1.Payment : I:100% T/T
II:30% advaced and the balance paid before delivery
III:credit letter at sight
2.MOQ:1Pcs
3.Port of loading: Qingdao Port or others
4.Price term:FOB Qingdao price
5.OEM:we are pleased to be your OEM factory
Contact Information:
Action Now Contact us.
TRUST YOU WILL LIKE OUR DESIGNS & PRICE.
Maria ma
Mobile/Whatsapp/Wechat /Skype: : +8617686192378
Tel:+86-537-2886869
QQ:3002841982
E-mail: hw020@ hengwanggk.com
