Taper rock drill bits we have 3 types: Chisel bits, button bits, cross bits

Rock Drill Tapered Chisel Bits is suitable for H22mm and H25mm taper rock drill rods use. It have three taper degree: 7° , 11° , 12° . It's widely used for hard rock(f=8~18) drilling use.
1) Tapered connection: 7, 11, 12
2) Alloy steel: 42CrMo
3) Carbide tips: YK20
4) Carbide size: 18*10mm, 15*10mm, 13*9.5mm
4) Chisel bit diameter: 30-80mm
5)Technology: Hot-pressing or welding
The information you may like to know before order:
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
3. Free replacement will provide once the failure confirmed caused by our product quality



Rock Drill Tapered Chisel Bits is suitable for H22mm and H25mm taper rock drill rods use. It have three taper degree: 7° , 11° , 12° . It's widely used for hard rock(f=8~18) drilling use.
1) Tapered connection: 7, 11, 12
2) Alloy steel: 42CrMo
3) Carbide tips: YK20
4) Carbide size: 18*10mm, 15*10mm, 13*9.5mm
4) Chisel bit diameter: 30-80mm
5)Technology: Hot-pressing or welding
The information you may like to know before order:
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
3. Free replacement will provide once the failure confirmed caused by our product quality
Product Name: | hardenss tapered chisel bits | |||
Types | Tapered chisel bits, Tapered cross bits, Tapered button bits | |||
Application:: | Tapered drill bits are used in granite and marble quarry, gold mine, railway, tunnel, etc. for drilling | |||
Feature: | Tapered drill bits connect tapered drill steel of rock drill for drilling holes | |||
Material: | High quality carbide and high quality steel | |||
MOQ: | No requirement for testing and trial order | |||
We can design and manufature according to your requirment of diameter, number air holes and carbide button shape. | ||||
Types of drill bits | Diameter (mm) | Taper Angle (Degree) | Length (mm) | Weight (kg) |
Tapered chisel bits | 20/22/28/30/32/34/36/38/40 | 4 degree/ 6 degree/ 7 degree/ 11 degree/ 12 degree | 50/55/60/71/80 | 0.15 - 0.45 |
Tapered cross bits | 24/26/28/30/32/33/34/35/36/3/38/40/42/48/50/55 | 50/55/60/71/80 | 0.18 - 0.7 | |
Tapered button bits | 28/29/30/32/33/34/35/36/37/38/40/41/42/45 | 50/55/60/71/80 | 0.2 - 0.5 |


