1.Dia.:30~42mm rock drill taper bits
2.Type:taper bits
3.Taper bits for rock drilling
4.OEM your brand
 

Rock Drill Tapered Button Bits is suitable for H22mm and H25mm taper rock drill rods use. It have three taper connection: 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) Suitable carbide tips:YK20

4) Cross bit diameter: 30-42mm

5)Technology:hot-pressing or welding

 

The information of the drill bit you may like to know before order:

1.Method of payment:T/T(Telegraphic Transfer)or Western Union or L/C at sight.
2.Handing 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 by air.Bulk order we suggest by sea or by air.
4.Quality control:We have our own experienced QC,there will be strict inspection and testing for every order before shipping out.


drill bit production process:

1.raw material-2.making bits body-3.making bit face-4.heat treatment-5package.

About us:
 

1. our factory has been specialized in manufacturing drilling tools and spare since 2000.
2. we have advanced technology and equipment.
3. our technician has more that 10 years professtional working experience.
4. rock drilling tools are exported throughout the word.main market:Norway.Turkey. Canada.Australia. Brazil.Iron. India.UAE
5. We have professional technicians,advanced machine,responsible sales team